Export-Excel.ps1

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
function Export-Excel {
    <#
        .SYNOPSIS
            Exports data to an Excel worksheet.
        .DESCRIPTION
            Exports data to an Excel file and where possible tries to convert numbers
            in text fields so Excel recognizes them as numbers instead of text.
             After all: Excel is a spreadsheet program used for number manipulation
             and calculations. If number conversion is not desired, use the
             parameter -NoNumberConversion *.
        .PARAMETER Path
            Path to a new or existing .XLSX file.
        .PARAMETER ExcelPackage
            An object representing an Excel Package - usually this is returned by specifying -PassThru allowing multiple commands to work on the same workbook without saving and reloading each time.
        .PARAMETER WorksheetName
            The name of a sheet within the workbook - "Sheet1" by default.
        .PARAMETER ClearSheet
            If specified Export-Excel will remove any existing worksheet with the selected name. The Default behaviour is to overwrite cells in this sheet as needed (but leaving non-overwritten ones in place).
        .PARAMETER Append
            If specified dat,a will be added to the end of an existing sheet, using the same column headings.
        .PARAMETER TargetData
            Data to insert onto the worksheet - this is usually provided from the pipeline.
        .PARAMETER DisplayPropertySet
            Many (but not all) objects have a hidden property named psStandardmembers with a child property DefaultDisplayPropertySet ; this parameter reduces the properties exported to those in this set.
        .PARAMETER NoAliasOrScriptPropeties
            Some objects duplicate existing properties by adding aliases, or have Script properties which take a long time to return a value and slow the export down, if specified this removes these properties
        .PARAMETER ExcludeProperty
            Specifies properties which may exist in the target data but should not be placed on the worksheet.
        .PARAMETER Calculate
            If specified a recalculation of the worksheet will be requested before saving.
        .PARAMETER Title
            Text of a title to be placed in the top left cell.
        .PARAMETER TitleBold
            Sets the title in boldface type.
        .PARAMETER TitleSize
            Sets the point size for the title.
        .PARAMETER TitleBackgroundColor
            Sets the cell background color for the title cell.
        .PARAMETER TitleFillPattern
            Sets the fill pattern for the title cell.
        .PARAMETER Password
            Sets password protection on the workbook.
        .PARAMETER IncludePivotTable
            Adds a PivotTable using the data in the worksheet.
        .PARAMETER PivotTableName
            If a PivotTable is created from command line parameters, specifies the name of the new sheet holding the pivot. Defaults to "WorksheetName-PivotTable".
        .PARAMETER PivotRows
            Name(s) of column(s) from the spreadsheet which will provide the Row name(s) in a PivotTable created from command line parameters.
        .PARAMETER PivotColumns
            Name(s) of columns from the spreadsheet which will provide the Column name(s) in a PivotTable created from command line parameters.
        .PARAMETER PivotFilter
            Name(s) columns from the spreadsheet which will provide the Filter name(s) in a PivotTable created from command line parameters.
        .PARAMETER PivotData
            In a PivotTable created from command line parameters, the fields to use in the table body are given as a Hash table in the form ColumnName = Average|Count|CountNums|Max|Min|Product|None|StdDev|StdDevP|Sum|Var|VarP.
        .PARAMETER PivotDataToColumn
            If there are multiple datasets in a PivotTable, by default they are shown as separate rows under the given row heading; this switch makes them separate columns.
        .PARAMETER NoTotalsInPivot
            In a PivotTable created from command line parameters, prevents the addition of totals to rows and columns.
        .PARAMETER PivotTotals
            By default, PivotTables have totals for each row (on the right) and for each column at the bottom. This allows just one or neither to be selected.
        .PARAMETER PivotTableDefinition
            Instead of describing a single PivotTable with multiple command-line parameters; you can use a HashTable in the form PivotTableName = Definition;
            Definition is itself a Hashtable with Sheet, PivotRows, PivotColumns, PivotData, IncludePivotChart and ChartType values.
        .PARAMETER IncludePivotChart
            Include a chart with the PivotTable - implies -IncludePivotTable.
        .PARAMETER ChartType
            The type for PivotChart (one of Excel's defined chart types).
        .PARAMETER NoLegend
            Exclude the legend from the PivotChart.
        .PARAMETER ShowCategory
            Add category labels to the PivotChart.
        .PARAMETER ShowPercent
            Add percentage labels to the PivotChart.
        .PARAMETER ConditionalFormat
            One or more conditional formatting rules defined with New-ConditionalFormattingIconSet.
        .PARAMETER ConditionalText
            Applies a Conditional formatting rule defined with New-ConditionalText. When specific conditions are met the format is applied.
        .PARAMETER NoNumberConversion
            By default we convert all values to numbers if possible, but this isn't always desirable. NoNumberConversion allows you to add exceptions for the conversion. Wildcards (like '*') are allowed.
        .PARAMETER BoldTopRow
            Makes the top row boldface.
        .PARAMETER NoHeader
            Does not put field names at the top of columns.
        .PARAMETER RangeName
            Makes the data in the worksheet a named range.
        .PARAMETER TableName
            Makes the data in the worksheet a table with a name, and applies a style to it. Name must not contain spaces.
        .PARAMETER TableStyle
            Selects the style for the named table - defaults to 'Medium6'.
        .PARAMETER BarChart
            Creates a "quick" bar chart using the first text column as labels and the first numeric column as values
        .PARAMETER ColumnChart
            Creates a "quick" column chart using the first text column as labels and the first numeric column as values
        .PARAMETER LineChart
            Creates a "quick" line chart using the first text column as labels and the first numeric column as values
        .PARAMETER PieChart
            Creates a "quick" pie chart using the first text column as labels and the first numeric column as values
        .PARAMETER ExcelChartDefinition
            A hash table containing ChartType, Title, NoLegend, ShowCategory, ShowPercent, Yrange, Xrange and SeriesHeader for one or more [non-Pivot] charts.
        .PARAMETER HideSheet
            Name(s) of Sheet(s) to hide in the workbook, supports wildcards. If the selection would cause all sheets to be hidden, the sheet being worked on will be revealed.
        .PARAMETER UnHideSheet
            Name(s) of Sheet(s) to reveal in the workbook, supports wildcards.
        .PARAMETER MoveToStart
            If specified, the worksheet will be moved to the start of the workbook.
            -MoveToStart takes precedence over -MoveToEnd, -Movebefore and -MoveAfter if more than one is specified.
        .PARAMETER MoveToEnd
            If specified, the worksheet will be moved to the end of the workbook.
            (This is the default position for newly created sheets, but this can be used to move existing sheets.)
        .PARAMETER MoveBefore
            If specified, the worksheet will be moved before the nominated one (which can be a position starting from 1, or a name).
            -MoveBefore takes precedence over -MoveAfter if both are specified.
        .PARAMETER MoveAfter
            If specified, the worksheet will be moved after the nominated one (which can be a position starting from 1, or a name or *).
            If * is used, the worksheet names will be examined starting with the first one, and the sheet placed after the last sheet which comes before it alphabetically.
        .PARAMETER KillExcel
            Closes Excel - prevents errors writing to the file because Excel has it open.
        .PARAMETER AutoNameRange
            Makes each column a named range.
        .PARAMETER StartRow
            Row to start adding data. 1 by default. Row 1 will contain the title if any. Then headers will appear (Unless -No header is specified) then the data appears.
        .PARAMETER StartColumn
            Column to start adding data - 1 by default.
        .PARAMETER FreezeTopRow
            Freezes headers etc. in the top row.
        .PARAMETER FreezeFirstColumn
            Freezes titles etc. in the left column.
        .PARAMETER FreezeTopRowFirstColumn
             Freezes top row and left column (equivalent to Freeze pane 2,2 ).
        .PARAMETER FreezePane
             Freezes panes at specified coordinates (in the form RowNumber, ColumnNumber).
        .PARAMETER AutoFilter
            Enables the Excel filter on the complete header row, so users can easily sort, filter and/or search the data in the selected column.
        .PARAMETER AutoSize
            Sizes the width of the Excel column to the maximum width needed to display all the containing data in that cell.
        .PARAMETER Activate
            If there is already content in the workbook, a new sheet will not be active UNLESS Activate is specified; if a PivotTable is included it will be the active sheet
        .PARAMETER Now
            The -Now switch is a shortcut that automatically creates a temporary file, enables "AutoSize", "AutoFiler" and "Show", and opens the file immediately.
        .PARAMETER NumberFormat
            Formats all values that can be converted to a number to the format specified.
 
            Examples:
            # integer (not really needed unless you need to round numbers, Excel will use default cell properties).
            '0'
 
            # integer without displaying the number 0 in the cell.
            '#'
 
            # number with 1 decimal place.
            '0.0'
 
            # number with 2 decimal places.
            '0.00'
 
            # number with 2 decimal places and thousand-separator.
            '#,##0.00'
 
            # number with 2 decimal places and thousand-separator and money-symbol.
            '€#,##0.00'
 
            # percentage (1 = 100%, 0.01 = 1%)
            '0%'
 
            # Blue color for positive numbers and a red color for negative numbers. All numbers will be proceeded by a dollar sign '$'.
            '[Blue]$#,##0.00;[Red]-$#,##0.00'
 
        .PARAMETER ReZip
            If specified, Export-Excel will expand the contents of the .XLSX file (which is multiple files in a zip archive) and rebuild it.
        .PARAMETER NoClobber
            Not used. Left in to avoid problems with older scripts, it may be removed in future versions.
        .PARAMETER CellStyleSB
            A script block which is run at the end of the export to apply styles to cells (although it can be used for other purposes).
            The script block is given three paramaters; an object containing the current worksheet, the Total number of Rows and the number of the last column.
        .PARAMETER Show
            Opens the Excel file immediately after creation. Convenient for viewing the results instantly without having to search for the file first.
        .PARAMETER ReturnRange
            If specified, Export-Excel returns the range of added cells in the format "A1:Z100".
        .PARAMETER PassThru
            If specified, Export-Excel returns an object representing the Excel package without saving the package first.
            To save, you need to call Close-ExcelPackage or send the object back to Export-Excel, or use its .Save() or SaveAs() method.
        .EXAMPLE
            Get-Process | Export-Excel .\Test.xlsx -show
            Export all the processes to the Excel file 'Test.xlsx' and open the file immediately.
 
        .EXAMPLE
        >
        PS> $ExcelParams = @{
                Path = $env:TEMP + '\Excel.xlsx'
                Show = $true
                Verbose = $true
            }
            Remove-Item -Path $ExcelParams.Path -Force -EA Ignore
            Write-Output -1 668 34 777 860 -0.5 119 -0.1 234 788 |
                Export-Excel @ExcelParams -NumberFormat '[Blue]$#,##0.00;[Red]-$#,##0.00'
 
            Exports all data to the Excel file 'Excel.xslx' and colors the negative values
            in Red and the positive values in Blue. It will also add a dollar sign in front
            of the numbers which use a thousand seperator and display to two decimal places.
 
        .EXAMPLE
        >
        PS> $ExcelParams = @{
                Path = $env:TEMP + '\Excel.xlsx'
                Show = $true
                Verbose = $true
            }
            Remove-Item -Path $ExcelParams.Path -Force -EA Ignore
            [PSCustOmobject][Ordered]@{
                Date = Get-Date
                Formula1 = '=SUM(F2:G2)'
                String1 = 'My String'
                String2 = 'a'
                IPAddress = '10.10.25.5'
                Number1 = '07670'
                Number2 = '0,26'
                Number3 = '1.555,83'
                Number4 = '1.2'
                Number5 = '-31'
                PhoneNr1 = '+32 44'
                PhoneNr2 = '+32 4 4444 444'
                PhoneNr3 = '+3244444444'
            } | Export-Excel @ExcelParams -NoNumberConversion IPAddress, Number1
 
            Exports all data to the Excel file "Excel.xlsx" and tries to convert all values
            to numbers where possible except for "IPAddress" and "Number1", which are
            stored in the sheet 'as is', without being converted to a number.
 
        .EXAMPLE
        >
        PS> $ExcelParams = @{
                Path = $env:TEMP + '\Excel.xlsx'
                Show = $true
                Verbose = $true
            }
            Remove-Item -Path $ExcelParams.Path -Force -EA Ignore
            [PSCustOmobject][Ordered]@{
                Date = Get-Date
                Formula1 = '=SUM(F2:G2)'
                String1 = 'My String'
                String2 = 'a'
                IPAddress = '10.10.25.5'
                Number1 = '07670'
                Number2 = '0,26'
                Number3 = '1.555,83'
                Number4 = '1.2'
                Number5 = '-31'
                PhoneNr1 = '+32 44'
                PhoneNr2 = '+32 4 4444 444'
                PhoneNr3 = '+3244444444'
            } | Export-Excel @ExcelParams -NoNumberConversion *
 
            Exports all data to the Excel file 'Excel.xslx' as is, no number conversion
            will take place. This means that Excel will show the exact same data that
            you handed over to the 'Export-Excel' function.
 
        .EXAMPLE
        >
        PS> $ExcelParams = @{
                Path = $env:TEMP + '\Excel.xlsx'
                Show = $true
                Verbose = $true
            }
            Remove-Item -Path $ExcelParams.Path -Force -EA Ignore
            Write-Output 489 668 299 777 860 151 119 497 234 788 |
                Export-Excel @ExcelParams -ConditionalText $(
                    New-ConditionalText -ConditionalType GreaterThan 525 -ConditionalTextColor DarkRed -BackgroundColor LightPink
                )
 
            Exports data that will have a Conditional Formatting rule in Excel
            that will show cells with a value is greater than 525, whith a
            background fill color of "LightPink" and the text in "DarkRed".
            Where condition is not met the color willbe the default, black
            text on a white background.
 
        .EXAMPLE
        >
        PS> $ExcelParams = @{
                Path = $env:TEMP + '\Excel.xlsx'
                Show = $true
                Verbose = $true
            }
            Remove-Item -Path $ExcelParams.Path -Force -EA Ignore
            Get-Service | Select-Object -Property Name, Status, DisplayName, ServiceName |
                Export-Excel @ExcelParams -ConditionalText $(
                    New-ConditionalText Stop DarkRed LightPink
                    New-ConditionalText Running Blue Cyan
                )
 
            Exports all services to an Excel sheet, setting a Conditional formatting rule
            that will set the background fill color to "LightPink" and the text color
            to "DarkRed" when the value contains the word "Stop".
            If the value contains the word "Running" it will have a background fill
            color of "Cyan" and text colored 'Blue'. If neither condition is met, the
            color will be the default, black text on a white background.
 
        .EXAMPLE
        >
        PS> $ExcelParams = @{
                Path = $env:TEMP + '\Excel.xlsx'
                Show = $true
                Verbose = $true
            }
            Remove-Item -Path $ExcelParams.Path -Force -EA Ignore
 
            $Array = @()
 
            $Obj1 = [PSCustomObject]@{
                Member1 = 'First'
                Member2 = 'Second'
            }
 
            $Obj2 = [PSCustomObject]@{
                Member1 = 'First'
                Member2 = 'Second'
                Member3 = 'Third'
            }
 
            $Obj3 = [PSCustomObject]@{
                Member1 = 'First'
                Member2 = 'Second'
                Member3 = 'Third'
                Member4 = 'Fourth'
            }
 
            $Array = $Obj1, $Obj2, $Obj3
            $Array | Out-GridView -Title 'Not showing Member3 and Member4'
            $Array | Update-FirstObjectProperties | Export-Excel @ExcelParams -WorksheetName Numbers
 
            Updates the first object of the array by adding property 'Member3' and 'Member4'.
            Afterwards. all objects are exported to an Excel file and all column headers are visible.
 
        .EXAMPLE
            Get-Process | Export-Excel .\test.xlsx -WorksheetName Processes -IncludePivotTable -Show -PivotRows Company -PivotData PM
 
        .EXAMPLE
            Get-Process | Export-Excel .\test.xlsx -WorksheetName Processes -ChartType PieExploded3D -IncludePivotChart -IncludePivotTable -Show -PivotRows Company -PivotData PM
 
        .EXAMPLE
            Get-Service | Export-Excel 'c:\temp\test.xlsx' -Show -IncludePivotTable -PivotRows status -PivotData @{status='count'}
 
        .EXAMPLE
        >
        PS> $pt = [ordered]@{}
            $pt.pt1=@{ SourceWorkSheet = 'Sheet1';
                       PivotRows = 'Status'
                       PivotData = @{'Status'='count'}
                       IncludePivotChart = $true
                       ChartType = 'BarClustered3D'
            }
            $pt.pt2=@{ SourceWorkSheet = 'Sheet2';
                       PivotRows = 'Company'
                       PivotData = @{'Company'='count'}
                       IncludePivotChart = $true
                       ChartType = 'PieExploded3D'
            }
            Remove-Item -Path .\test.xlsx
            Get-Service | Select-Object -Property Status,Name,DisplayName,StartType | Export-Excel -Path .\test.xlsx -AutoSize
            Get-Process | Select-Object -Property Name,Company,Handles,CPU,VM | Export-Excel -Path .\test.xlsx -AutoSize -WorksheetName 'sheet2'
            Export-Excel -Path .\test.xlsx -PivotTableDefinition $pt -Show
 
            This example defines two PivotTables. Then it puts Service data on Sheet1
            with one call to Export-Excel and Process Data on sheet2 with a second
            call to Export-Excel. The third and final call adds the two PivotTables
            and opens the spreadsheet in Excel.
        .EXAMPLE
        >
        PS> Remove-Item -Path .\test.xlsx
            $excel = Get-Service | Select-Object -Property Status,Name,DisplayName,StartType | Export-Excel -Path .\test.xlsx -PassThru
            $excel.Workbook.Worksheets["Sheet1"].Row(1).style.font.bold = $true
            $excel.Workbook.Worksheets["Sheet1"].Column(3 ).width = 29
            $excel.Workbook.Worksheets["Sheet1"].Column(3 ).Style.wraptext = $true
            $excel.Save()
            $excel.Dispose()
            Start-Process .\test.xlsx
 
            This example uses -PassThru. It puts service information into sheet1 of the
            workbook and saves the ExcelPackage object in $Excel. It then uses the package
            object to apply formatting, and then saves the workbook and disposes of the object
            before loading the document in Excel. Other commands in the module remove the need
            to work directly with the package object in this way.
 
        .EXAMPLE
        >
        PS> Remove-Item -Path .\test.xlsx -ErrorAction Ignore
            $excel = Get-Process | Select-Object -Property Name,Company,Handles,CPU,PM,NPM,WS | Export-Excel -Path .\test.xlsx -ClearSheet -WorksheetName "Processes" -PassThru
            $sheet = $excel.Workbook.Worksheets["Processes"]
            $sheet.Column(1) | Set-ExcelRange -Bold -AutoFit
            $sheet.Column(2) | Set-ExcelRange -Width 29 -WrapText
            $sheet.Column(3) | Set-ExcelRange -HorizontalAlignment Right -NFormat "#,###"
            Set-ExcelRange -Address $sheet.Cells["E1:H1048576"] -HorizontalAlignment Right -NFormat "#,###"
            Set-ExcelRange -Address $sheet.Column(4) -HorizontalAlignment Right -NFormat "#,##0.0" -Bold
            Set-ExcelRange -Address $sheet.Row(1) -Bold -HorizontalAlignment Center
            Add-ConditionalFormatting -WorkSheet $sheet -Range "D2:D1048576" -DataBarColor Red
            Add-ConditionalFormatting -WorkSheet $sheet -Range "G2:G1048576" -RuleType GreaterThan -ConditionValue "104857600" -ForeGroundColor Red
            foreach ($c in 5..9) {Set-ExcelRange -Address $sheet.Column($c) -AutoFit }
            Export-Excel -ExcelPackage $excel -WorksheetName "Processes" -IncludePivotChart -ChartType ColumnClustered -NoLegend -PivotRows company -PivotData @{'Name'='Count'} -Show
 
            This a more sophisticated version of the previous example showing different
            ways of using Set-ExcelRange, and also adding conditional formatting.
            In the final command a PivotChart is added and the workbook is opened in Excel.
        .EXAMPLE
             0..360 | ForEach-Object {[pscustomobject][ordered]@{X=$_; Sinx="=Sin(Radians(x)) "} } | Export-Excel -now -LineChart -AutoNameRange
 
             Creates a line chart showing the value of Sine(x) for values of X between 0 and 360 degrees.
 
        .EXAMPLE
        >
        PS> Invoke-Sqlcmd -ServerInstance localhost\DEFAULT -Database AdventureWorks2014 -Query "select * from sys.tables" -OutputAs DataRows |
            Export-Excel -Path .\SysTables_AdventureWorks2014.xlsx -WorksheetName Tables
 
            Runs a query against a SQL Server database and outputs the resulting rows DataRows using the -OutputAs parameter.
            The results are then piped to the Export-Excel function.
            NOTE: You need to install the SqlServer module from the PowerShell Gallery in oder to get the -OutputAs parameter for the Invoke-Sqlcmd cmdlet.
 
        .LINK
            https://github.com/dfinke/ImportExcel
    #>

    [CmdletBinding(DefaultParameterSetName = 'Default')]
    [OutputType([OfficeOpenXml.ExcelPackage])]
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSAvoidUsingPlainTextForPassword", "")]
    Param(
        [Parameter(ParameterSetName = "Default", Position = 0)]
        [Parameter(ParameterSetName = "Table"  , Position = 0)]
        [String]$Path,
        [Parameter(Mandatory = $true, ParameterSetName = "PackageDefault")]
        [Parameter(Mandatory = $true, ParameterSetName = "PackageTable")]
        [OfficeOpenXml.ExcelPackage]$ExcelPackage,
        [Parameter(ValueFromPipeline = $true)]
        $TargetData,
        [Switch]$Calculate,
        [Switch]$Show,
        [String]$WorksheetName = 'Sheet1',
        [String]$Password,
        [switch]$ClearSheet,
        [switch]$Append,
        [String]$Title,
        [OfficeOpenXml.Style.ExcelFillStyle]$TitleFillPattern = 'Solid',
        [Switch]$TitleBold,
        [Int]$TitleSize = 22,
        $TitleBackgroundColor,
        [Switch]$IncludePivotTable,
        [String]$PivotTableName,
        [String[]]$PivotRows,
        [String[]]$PivotColumns,
        $PivotData,
        [String[]]$PivotFilter,
        [Switch]$PivotDataToColumn,
        [Hashtable]$PivotTableDefinition,
        [Switch]$IncludePivotChart,
        [OfficeOpenXml.Drawing.Chart.eChartType]$ChartType = 'Pie',
        [Switch]$NoLegend,
        [Switch]$ShowCategory,
        [Switch]$ShowPercent,
        [Switch]$AutoSize,
        [Switch]$NoClobber,
        [Switch]$FreezeTopRow,
        [Switch]$FreezeFirstColumn,
        [Switch]$FreezeTopRowFirstColumn,
        [Int[]]$FreezePane,
        [Parameter(ParameterSetName = 'Default')]
        [Parameter(ParameterSetName = 'PackageDefault')]
        [Switch]$AutoFilter,
        [Switch]$BoldTopRow,
        [Switch]$NoHeader,
        [ValidateScript( {
                if (-not $_) {  throw 'RangeName is null or empty.'  }
                elseif ($_[0] -notmatch '[a-z]') { throw 'RangeName starts with an invalid character.'  }
                else { $true }
            })]
        [String]$RangeName,
        [ValidateScript( {
                if (-not $_) {  throw 'Tablename is null or empty.'  }
                elseif ($_[0] -notmatch '[a-z]') { throw 'Tablename starts with an invalid character.'  }
                else { $true }
            })]
        [Parameter(ParameterSetName = 'Table'        , Mandatory = $true, ValueFromPipelineByPropertyName)]
        [Parameter(ParameterSetName = 'PackageTable' , Mandatory = $true, ValueFromPipelineByPropertyName)]
        [String]$TableName,
        [Parameter(ParameterSetName = 'Table')]
        [Parameter(ParameterSetName = 'PackageTable')]
        [OfficeOpenXml.Table.TableStyles]$TableStyle = 'Medium6',
        [Switch]$Barchart,
        [Switch]$PieChart,
        [Switch]$LineChart ,
        [Switch]$ColumnChart ,
        [Object[]]$ExcelChartDefinition,
        [String[]]$HideSheet,
        [String[]]$UnHideSheet,
        [Switch]$MoveToStart,
        [Switch]$MoveToEnd,
        $MoveBefore ,
        $MoveAfter ,
        [Switch]$KillExcel,
        [Switch]$AutoNameRange,
        [Int]$StartRow = 1,
        [Int]$StartColumn = 1,
        [Switch]$PassThru,
        [String]$Numberformat = 'General',
        [string[]]$ExcludeProperty,
        [Switch]$NoAliasOrScriptPropeties,
        [Switch]$DisplayPropertySet,
        [String[]]$NoNumberConversion,
        [Object[]]$ConditionalFormat,
        [Object[]]$ConditionalText,
        [ScriptBlock]$CellStyleSB,
        #If there is already content in the workbook the sheet with the PivotTable will not be active UNLESS Activate is specified
        [switch]$Activate,
        [Parameter(ParameterSetName = 'Now')]
        [Switch]$Now,
        [Switch]$ReturnRange,
        #By default PivotTables have Totals for each Row (on the right) and for each column at the bottom. This allows just one or neither to be selected.
        [ValidateSet("Both","Columns","Rows","None")]
        [String]$PivotTotals = "Both",
        #Included for compatibility - equivalent to -PivotTotals "None"
        [Switch]$NoTotalsInPivot,
        [Switch]$ReZip
    )

    Begin {
        $numberRegex = [Regex]'\d'
        function Add-CellValue {
            <#
              .SYNOPSIS
                Save a value in an Excel cell.
 
              .DESCRIPTION
                DateTime objects are always converted to a short DateTime format in Excel. When Excel loads the file,
                it applies the local format for dates. And formulas are always saved as formulas. URIs are set as hyperlinks in the file.
 
                Numerical values will be converted to numbers as defined in the regional settings of the local
                system. In case the parameter 'NoNumberConversion' is used, we don't convert to number and leave
                the value 'as is'. In case of conversion failure, we also leave the value 'as is'.
            #>


            Param (
                $TargetCell,
                $CellValue
            )
            #The write-verbose commands have been commented out below - even if verbose is silenced they cause a significiant performance impact and if it's on they will cause a flood of messages.
            Switch ($CellValue) {
                { $_ -is [DateTime]} {
                    # Save a date with one of Excel's built in formats format
                    $TargetCell.Value = $_
                    $TargetCell.Style.Numberformat.Format = 'm/d/yy h:mm' # This is not a custom format, but a preset recognized as date and localized.
                    #Write-Verbose "Cell '$Row`:$ColumnIndex' header '$Name' add value '$_' as date"
                    break

                }
                { $_ -is [TimeSpan]} {
                    #Save a timespans with a built in format for elapsed hours, minutes and seconds
                    $TargetCell.Value = $_
                    $TargetCell.Style.Numberformat.Format = '[h]:mm:ss'
                    break
                }
                { $_ -is [System.ValueType]} {
                    # Save numerics, setting format if need be.
                    $TargetCell.Value = $_
                    if ($setNumformat) {$targetCell.Style.Numberformat.Format = $Numberformat }
                    #Write-Verbose "Cell '$Row`:$ColumnIndex' header '$Name' add value '$_' as value"
                    break
                }
                {($_ -is [String]) -and ($_[0] -eq '=')} {
                    #region Save an Excel formula - we need = to spot the formula but the EPPLUS won't like it if we include it (Excel doesn't care if is there or not)
                    $TargetCell.Formula = ($_ -replace '^=','')
                    if ($setNumformat) {$targetCell.Style.Numberformat.Format = $Numberformat }
                    #Write-Verbose "Cell '$Row`:$ColumnIndex' header '$Name' add value '$_' as formula"
                    break
                }
                { [System.Uri]::IsWellFormedUriString($_ , [System.UriKind]::Absolute) } {
                    # Save a hyperlink : internal links can be in the form xl://sheet!E419 (use A1 as goto sheet), or xl://RangeName
                    if ($_ -is [uri]) {$targetCell.HyperLink = $_ }
                    elseif ($_ -match "^xl://internal/") {
                          $referenceAddress = $_ -replace "^xl://internal/" , ""
                          $display          = $referenceAddress -replace "!A1$"   , ""
                          $h = New-Object -TypeName OfficeOpenXml.ExcelHyperLink -ArgumentList $referenceAddress , $display
                          $TargetCell.HyperLink = $h
                    }
                    else {$TargetCell.HyperLink = $_ }   #$TargetCell.Value = $_.AbsoluteUri
                    $TargetCell.Style.Font.Color.SetColor([System.Drawing.Color]::Blue)
                    $TargetCell.Style.Font.UnderLine = $true
                    #Write-Verbose "Cell '$Row`:$ColumnIndex' header '$Name' add value '$($_.AbsoluteUri)' as Hyperlink"
                    break
                }
                {( $NoNumberConversion -and (
                  ($NoNumberConversion -contains $Name) -or ($NoNumberConversion -eq '*'))) } {
                    #Save text without it to converting to number
                    $TargetCell.Value = $_
                    #Write-Verbose "Cell '$Row`:$ColumnIndex' header '$Name' add value '$($TargetCell.Value)' unconverted"
                    break
                }
                Default {
                    #Save a value as a number if possible
                    $number = $null
                    if ($numberRegex.IsMatch($_) -and [Double]::TryParse($_, [System.Globalization.NumberStyles]::Any, [System.Globalization.NumberFormatInfo]::CurrentInfo, [Ref]$number)) {
                        # as simpler version using [Double]::TryParse( $_ , [ref]$number)) was found to cause problems reverted back to the longer version
                        $TargetCell.Value = $number
                        if ($setNumformat) {$targetCell.Style.Numberformat.Format = $Numberformat }
                        #Write-Verbose "Cell '$Row`:$ColumnIndex' header '$Name' add value '$($TargetCell.Value)' as number converted from '$_' with format '$Numberformat'"
                    }
                    else {
                        $TargetCell.Value = $_
                        #Write-Verbose "Cell '$Row`:$ColumnIndex' header '$Name' add value '$($TargetCell.Value)' as string"
                    }
                    break
                }
            }
        }

        try {
            $script:Header = $null
            if ($Append -and $ClearSheet) {throw "You can't use -Append AND -ClearSheet."}

            if ($PSBoundParameters.Keys.Count -eq 0 -Or $Now) {
                $Path = [System.IO.Path]::GetTempFileName() -replace '\.tmp', '.xlsx'
                $Show = $true
                $AutoSize = $true
                if (!$TableName) {
                    $AutoFilter = $true
                }
            }

            if ($ExcelPackage) {
                $pkg = $ExcelPackage
                $Path = $pkg.File
            }
            Else { $pkg = Open-ExcelPackage -Path $Path -Create -KillExcel:$KillExcel -Password:$Password}
        }
        catch {throw "Could not open Excel Package $path"}
        if ($NoClobber) {Write-Warning -Message "-NoClobber parameter is no longer used" }
        try {
            $params = @{WorksheetName=$WorksheetName}
            foreach ($p in @("ClearSheet", "MoveToStart", "MoveToEnd", "MoveBefore", "MoveAfter", "Activate")) {if ($PSBoundParameters[$p]) {$params[$p] = $PSBoundParameters[$p]}}
            $ws = $pkg | Add-WorkSheet @params
            if ($ws.Name -ne $WorksheetName) {
                Write-Warning -Message "The Worksheet name has been changed from $WorksheetName to $($ws.Name), this may cause errors later."
                $WorksheetName = $ws.Name
            }
        }
        catch {throw "Could not get worksheet $worksheetname"}
        try {
            if ($Append -and $ws.Dimension) {
                #if there is a title or anything else above the header row, append needs to be combined wih a suitable startrow parameter
                $headerRange = $ws.Dimension.Address -replace "\d+$", $StartRow
                #using a slightly odd syntax otherwise header ends up as a 2D array
                $ws.Cells[$headerRange].Value | ForEach-Object -Begin {$Script:header = @()} -Process {$Script:header += $_ }
                #if we did not get AutoNameRange, but headers have ranges of the same name make autoNameRange True, otherwise make it false
                if (-not $AutoNameRange) {
                    $AutoNameRange  = $true ; foreach ($h in $header) {if ($ws.names.name -notcontains $h) {$AutoNameRange = $false} }
                }
                #if we did not get a Rangename but there is a Range which covers the active part of the sheet, set Rangename to that.
                if (-not $RangeName -and $ws.names.where({$_.name[0] -match '[a-z]'})) {
                    $theRange = $ws.names.where({
                         ($_.Name[0]   -match '[a-z]' )              -and
                         ($_.Start.Row    -eq $StartRow)             -and
                         ($_.Start.Column -eq $StartColumn)          -and
                         ($_.End.Row      -eq $ws.Dimension.End.Row) -and
                         ($_.End.Column   -eq $ws.Dimension.End.column) } , 'First', 1)
                    if ($theRange) {$rangename = $theRange.name}
                }

                #if we did not get a table name but there is a table which covers the active part of the sheet, set table name to that, and don't do anything with autofilter
                if (-not $TableName -and $ws.Tables.Where({$_.address.address -eq $ws.dimension.address})) {
                    $TableName  = $ws.Tables.Where({$_.address.address -eq $ws.dimension.address},'First', 1).Name
                    $AutoFilter = $false
                }
                #if we did not get $autofilter but a filter range is set and it covers the right area, set autofilter to true
                elseif (-not $AutoFilter -and $ws.Names['_xlnm._FilterDatabase']) {
                    if ( ($ws.Names['_xlnm._FilterDatabase'].Start.Row    -eq $StartRow)    -and
                         ($ws.Names['_xlnm._FilterDatabase'].Start.Column -eq $StartColumn) -and
                         ($ws.Names['_xlnm._FilterDatabase'].End.Row      -eq $ws.Dimension.End.Row) -and
                         ($ws.Names['_xlnm._FilterDatabase'].End.Column   -eq $ws.Dimension.End.Column) ) {$AutoFilter = $true}
                }

                $row = $ws.Dimension.End.Row
                Write-Debug -Message ("Appending: headers are " + ($script:Header -join ", ") + " Start row is $row")
                if ($Title) {Write-Warning -Message "-Title Parameter is ignored when appending."}
            }
            elseif ($Title) {
                #Can only add a title if not appending!
                $Row = $StartRow
                $ws.Cells[$Row, $StartColumn].Value = $Title
                $ws.Cells[$Row, $StartColumn].Style.Font.Size = $TitleSize

                if  ($PSBoundParameters.ContainsKey("TitleBold")) {
                    #Set title to Bold face font if -TitleBold was specified.
                    #Otherwise the default will be unbolded.
                    $ws.Cells[$Row, $StartColumn].Style.Font.Bold = [boolean]$TitleBold
                }
                if ($TitleBackgroundColor ) {
                    if ($TitleBackgroundColor -is [string])         {$TitleBackgroundColor = [System.Drawing.Color]::$TitleBackgroundColor }
                    $ws.Cells[$Row, $StartColumn].Style.Fill.PatternType = $TitleFillPattern
                    $ws.Cells[$Row, $StartColumn].Style.Fill.BackgroundColor.SetColor($TitleBackgroundColor)
                }
                $Row ++ ; $startRow ++
            }
            else {  $Row = $StartRow }
            $ColumnIndex = $StartColumn
            $Numberformat = Expand-NumberFormat -NumberFormat $Numberformat
            if ((-not $ws.Dimension) -and ($Numberformat -ne $ws.Cells.Style.Numberformat.Format)) {
                    $ws.Cells.Style.Numberformat.Format = $Numberformat
                    $setNumformat = $false
            }
            else {  $setNumformat = ($Numberformat -ne $ws.Cells.Style.Numberformat.Format) }

            $firstTimeThru = $true
            $isDataTypeValueType = $false
      }
        catch {
            if ($AlreadyExists) {
                #Is this set anywhere ?
                throw "Failed exporting worksheet '$WorksheetName' to '$Path': The worksheet '$WorksheetName' already exists."
            }
            else {
                throw "Failed preparing to export to worksheet '$WorksheetName' to '$Path': $_"
            }
      }
    }

    Process {
        if ($PSBoundParameters.ContainsKey("TargetData")) {
            try {
                if ($firstTimeThru) {
                    $firstTimeThru = $false
                    $isDataTypeValueType = ($null -eq $TargetData) -or ($TargetData.GetType().name -match 'string|timespan|datetime|bool|byte|char|decimal|double|float|int|long|sbyte|short|uint|ulong|ushort|URI|ExcelHyperLink')
                    if ($isDataTypeValueType -and -not $Append) {$row -= 1} #row incremented before adding values, so it is set to the number of rows inserted at the end
                    if ($null -ne  $TargetData) {Write-Debug "DataTypeName is '$($TargetData.GetType().name)' isDataTypeValueType '$isDataTypeValueType'" }
                }
                if ($isDataTypeValueType) {
                    $ColumnIndex = $StartColumn
                    $Row += 1
                    try    {Add-CellValue -TargetCell $ws.Cells[$Row, $ColumnIndex] -CellValue $TargetData}
                    catch  {Write-Warning "Could not insert value at Row $Row. "}
                }
                else {
                    #region Add headers - if we are appending, or we have been through here once already we will have the headers
                    if (-not $script:Header) {
                        $ColumnIndex = $StartColumn
                        if ($DisplayPropertySet -and $TargetData.psStandardmembers.DefaultDisplayPropertySet.ReferencedPropertyNames) {
                            $script:Header = $TargetData.psStandardmembers.DefaultDisplayPropertySet.ReferencedPropertyNames.Where( {$_ -notin $ExcludeProperty})
                        }
                        else {
                            if ($NoAliasOrScriptPropeties) {$propType = "Property"} else {$propType = "*"}
                            $script:Header = $TargetData.PSObject.Properties.where( {$_.MemberType -like $propType}).Name
                        }
                        foreach ($exclusion in $ExcludeProperty) {$script:Header = $script:Header -notlike $exclusion}
                        if ($NoHeader) {
                            # Don't push the headers to the spreadsheet
                            $Row -= 1
                        }
                        else {
                            foreach ($Name in $script:Header) {
                                $ws.Cells[$Row, $ColumnIndex].Value = $Name
                                Write-Verbose "Cell '$Row`:$ColumnIndex' add header '$Name'"
                                $ColumnIndex += 1
                            }
                        }
                    }
                    #endregion
                    #region Add non header values
                    $Row += 1
                    $ColumnIndex = $StartColumn

                    foreach ($Name in $script:Header) {
                        try   {Add-CellValue -TargetCell $ws.Cells[$Row, $ColumnIndex] -CellValue $TargetData.$Name}
                        catch {Write-Warning -Message "Could not insert the '$Name' property at Row $Row, Column $ColumnIndex"}
                        $ColumnIndex += 1
                    }
                    $ColumnIndex -= 1 # column index will be the last column whether isDataTypeValueType was true or false
                    #endregion
                }
            }
            catch {
                throw "Failed exporting data to worksheet '$WorksheetName' to '$Path': $_"
            }
        }
    }

    End {
        if ($firstTimeThru -and $ws.Dimension) {
              $LastRow        = $ws.Dimension.End.Row
              $LastCol        = $ws.Dimension.End.Column
              $endAddress     = $ws.Dimension.End.Address
        }
        else {
              $LastRow        = $Row
              $LastCol        = $ColumnIndex
              $endAddress     = [OfficeOpenXml.ExcelAddress]::GetAddress($LastRow , $LastCol)
        }
        $startAddress         = [OfficeOpenXml.ExcelAddress]::GetAddress($StartRow, $StartColumn)
        $dataRange            = "{0}:{1}" -f $startAddress, $endAddress

        Write-Debug "Data Range '$dataRange'"
        if ($AutoNameRange) {
            try {
                if (-not $script:header) {
                    # if there aren't any headers, use the the first row of data to name the ranges: this is the last point that headers will be used.
                    $headerRange = $ws.Dimension.Address -replace "\d+$", $StartRow
                    #using a slightly odd syntax otherwise header ends up as a 2D array
                    $ws.Cells[$headerRange].Value | ForEach-Object -Begin {$Script:header = @()} -Process {$Script:header += $_ }
                    if   ($PSBoundParameters.ContainsKey($TargetData)) {  #if Export was called with data that writes no header start the range at $startRow ($startRow is data)
                           $targetRow = $StartRow
                    }
                    else { $targetRow = $StartRow + 1 }                   #if Export was called without data to add names (assume $startRow is a header) or...
                }                                                         # ... called with data that writes a header, then start the range at $startRow + 1
                else {     $targetRow = $StartRow + 1 }

                #Dimension.start.row always seems to be one so we work out the target row
                #, but start.column is the first populated one and .Columns is the count of populated ones.
                # if we have 5 columns from 3 to 8, headers are numbered 0..4, so that is in the for loop and used for getting the name...
                # but we have to add the start column on when referencing positions
                foreach ($c in 0..($LastCol - $StartColumn)) {
                    $targetRangeName = @($script:Header)[$c]  #Let Add-ExcelName fix (and warn about) bad names
                    Add-ExcelName  -RangeName $targetRangeName -Range $ws.Cells[$targetRow, ($StartColumn + $c ), $LastRow, ($StartColumn + $c )]
                    try {#this test can throw with some names, surpress any error
                        if ([OfficeOpenXml.FormulaParsing.ExcelUtilities.ExcelAddressUtil]::IsValidAddress(($targetRangeName -replace '\W' , '_' ))) {
                            Write-Warning "AutoNameRange: Property name '$targetRangeName' is also a valid Excel address and may cause issues. Consider renaming the property name."
                        }
                    } Catch {}
                }
            }
            catch {Write-Warning -Message "Failed adding named ranges to worksheet '$WorksheetName': $_"  }
        }
        #Empty string is not allowed as a name for ranges or tables.
        if ($RangeName) { Add-ExcelName  -Range $ws.Cells[$dataRange] -RangeName $RangeName}

        if ($TableName) {
            if ($PSBoundParameters.ContainsKey('TableStyle')) {
                  Add-ExcelTable -Range $ws.Cells[$dataRange] -TableName $TableName -TableStyle $TableStyle
            }
            else {Add-ExcelTable -Range $ws.Cells[$dataRange] -TableName $TableName}
        }

        if ($AutoFilter) {
            try {
                $ws.Cells[$dataRange].AutoFilter = $true
                Write-Verbose -Message "Enabled autofilter. "
            }
            catch {Write-Warning -Message "Failed adding autofilter to worksheet '$WorksheetName': $_"}
        }

        if ($PivotTableDefinition) {
            foreach ($item in $PivotTableDefinition.GetEnumerator()) {
                $params = $item.value
                if ($Activate) {$params.Activate = $true   }
                if ($params.keys -notcontains 'SourceRange' -and
                   ($params.Keys -notcontains 'SourceWorkSheet'   -or  $params.SourceWorkSheet -eq $WorksheetName)) {$params.SourceRange = $dataRange}
                if ($params.Keys -notcontains 'SourceWorkSheet')      {$params.SourceWorkSheet = $ws }
                if ($params.Keys -notcontains 'NoTotalsInPivot'   -and $NoTotalsInPivot  ) {$params.PivotTotals       = 'None'}
                if ($params.Keys -notcontains 'PivotTotals'       -and $PivotTotals      ) {$params.PivotTotals       = $PivotTotals}
                if ($params.Keys -notcontains 'PivotDataToColumn' -and $PivotDataToColumn) {$params.PivotDataToColumn = $true}

                Add-PivotTable -ExcelPackage $pkg -PivotTableName $item.key @Params
            }
        }
        if ($IncludePivotTable -or $IncludePivotChart) {
            $params = @{
                'SourceRange' = $dataRange
            }
            if ($PivotTableName -and ($pkg.workbook.worksheets.tables.name -contains $PivotTableName)) {
                Write-Warning -Message "The selected PivotTable name '$PivotTableName' is already used as a table name. Adding a suffix of 'Pivot'."
                $PivotTableName += 'Pivot'
            }

            if   ($PivotTableName)  {$params.PivotTableName    = $PivotTableName}
            else                    {$params.PivotTableName    = $WorksheetName + 'PivotTable'}
            if          ($Activate) {$params.Activate          = $true   }
            if       ($PivotFilter) {$params.PivotFilter       = $PivotFilter}
            if         ($PivotRows) {$params.PivotRows         = $PivotRows}
            if      ($PivotColumns) {$Params.PivotColumns      = $PivotColumns}
            if         ($PivotData) {$Params.PivotData         = $PivotData}
            if   ($NoTotalsInPivot) {$params.PivotTotals       = "None"    }
            Elseif   ($PivotTotals) {$params.PivotTotals       = $PivotTotals}
            if ($PivotDataToColumn) {$params.PivotDataToColumn = $true}
            if ($IncludePivotChart) {
                                     $params.IncludePivotChart = $true
                                     $Params.ChartType         = $ChartType
                if ($ShowCategory)  {$params.ShowCategory      = $true}
                if ($ShowPercent)   {$params.ShowPercent       = $true}
                if ($NoLegend)      {$params.NoLegend          = $true}
            }
            Add-PivotTable -ExcelPackage $pkg -SourceWorkSheet $ws   @params
        }

        try {
            #Allow single switch or two seperate ones.
            if ($FreezeTopRowFirstColumn -or ($FreezeTopRow -and $FreezeFirstColumn)) {
                $ws.View.FreezePanes(2, 2)
                Write-Verbose -Message "Froze top row and first column"
            }
            elseif ($FreezeTopRow) {
                $ws.View.FreezePanes(2, 1)
                Write-Verbose -Message "Froze top row"
            }
            elseif ($FreezeFirstColumn) {
                $ws.View.FreezePanes(1, 2)
                Write-Verbose -Message "Froze first column"
            }
            #Must be 1..maxrows or and array of 1..maxRows,1..MaxCols
            if ($FreezePane) {
                $freezeRow, $freezeColumn = $FreezePane
                if (-not $freezeColumn -or $freezeColumn -eq 0) {
                    $freezeColumn = 1
                }

                if ($freezeRow -ge 1) {
                    $ws.View.FreezePanes($freezeRow, $freezeColumn)
                    Write-Verbose -Message "Froze panes at row $freezeRow and column $FreezeColumn"
                }
            }
        }
        catch {Write-Warning -Message "Failed adding Freezing the panes in worksheet '$WorksheetName': $_"}

        if  ($PSBoundParameters.ContainsKey("BoldTopRow")) { #it sets bold as far as there are populated cells: for whole row could do $ws.row($x).style.font.bold = $true
            try {
                if ($Title) {
                    $range = $ws.Dimension.Address -replace '\d+', ($StartRow + 1)
                }
                else {
                    $range = $ws.Dimension.Address -replace '\d+', $StartRow
                }
                $ws.Cells[$range].Style.Font.Bold = [boolean]$BoldTopRow
                Write-Verbose -Message "Set $range font style to bold."
            }
            catch {Write-Warning -Message "Failed setting the top row to bold in worksheet '$WorksheetName': $_"}
        }
        if ($AutoSize) {
            try {
                $ws.Cells.AutoFitColumns()
                Write-Verbose -Message "Auto-sized columns"
            }
            catch {  Write-Warning -Message "Failed autosizing columns of worksheet '$WorksheetName': $_"}
        }

        foreach ($Sheet in $HideSheet) {
            try {
                $pkg.Workbook.WorkSheets.Where({$_.Name -like $sheet}) | ForEach-Object {
                    $_.Hidden = 'Hidden'
                    Write-verbose -Message "Sheet '$($_.Name)' Hidden."
                }
            }
            catch {Write-Warning -Message  "Failed hiding worksheet '$sheet': $_"}
        }
        foreach ($Sheet in $UnHideSheet) {
            try {
                $pkg.Workbook.WorkSheets.Where({$_.Name -like $sheet}) | ForEach-Object {
                    $_.Hidden = 'Visible'
                    Write-verbose -Message "Sheet '$($_.Name)' shown"
                }
            }
            catch {Write-Warning -Message  "Failed showing worksheet '$sheet': $_"}
        }
        if (-not $pkg.Workbook.Worksheets.Where({$_.Hidden -eq 'visible'})) {
            Write-Verbose -Message "No Sheets were left visible, making $WorksheetName visible"
            $ws.Hidden = 'Visible'
        }

        foreach ($chartDef in $ExcelChartDefinition) {
            if ($chartDef -is [System.Management.Automation.PSCustomObject]) {
                $params = @{}
                $chartDef.PSObject.Properties | ForEach-Object {if ( $null -ne $_.value) {$params[$_.name] = $_.value}}
                Add-ExcelChart -Worksheet $ws @params
            }
            elseif ($chartDef -is [hashtable] -or  $chartDef -is[System.Collections.Specialized.OrderedDictionary]) {
                Add-ExcelChart -Worksheet $ws @chartDef
            }
        }

        if ($Calculate) {
            try   { [OfficeOpenXml.CalculationExtension]::Calculate($ws) }
            catch { Write-Warning "One or more errors occured while calculating, save will continue, but there may be errors in the workbook. $_"}
        }

        if ($Barchart -or $PieChart -or $LineChart -or $ColumnChart) {
            if ($NoHeader) {$FirstDataRow = $startRow}
            else           {$FirstDataRow = $startRow + 1 }
            $range = [OfficeOpenXml.ExcelAddress]::GetAddress($FirstDataRow, $startColumn, $FirstDataRow, $lastCol )
            $xCol  = $ws.cells[$range] | Where-Object {$_.value -is [string]    } | ForEach-Object {$_.start.column} | Sort-Object | Select-Object -first 1
            if (-not $xcol) {
                $xcol  = $StartColumn
                $range = [OfficeOpenXml.ExcelAddress]::GetAddress($FirstDataRow, ($startColumn +1), $FirstDataRow, $lastCol )
            }
            $yCol  = $ws.cells[$range] | Where-Object {$_.value -is [valueType] -or $_.Formula } | ForEach-Object {$_.start.column} | Sort-Object | Select-Object -first 1
            if (-not ($xCol -and $ycol)) { Write-Warning -Message "Can't identify a string column and a number column to use as chart labels and data. "}
            else {
                $params = @{
                XRange = [OfficeOpenXml.ExcelAddress]::GetAddress($FirstDataRow, $xcol , $lastrow, $xcol)
                YRange = [OfficeOpenXml.ExcelAddress]::GetAddress($FirstDataRow, $ycol , $lastrow, $ycol)
                Title  =  ''
                Column = ($lastCol +1)
                Width  = 800
                }
                if   ($ShowPercent) {$params["ShowPercent"]  = $true}
                if  ($ShowCategory) {$params["ShowCategory"] = $true}
                if      ($NoLegend) {$params["NoLegend"]     = $true}
                if (-not $NoHeader) {$params["SeriesHeader"] = $ws.Cells[$startRow, $YCol].Value}
                if   ($ColumnChart) {$Params["chartType"]    = "ColumnStacked" }
                elseif  ($Barchart) {$Params["chartType"]    = "BarStacked"    }
                elseif  ($PieChart) {$Params["chartType"]    = "PieExploded3D" }
                elseif ($LineChart) {$Params["chartType"]    = "Line"          }

                Add-ExcelChart -Worksheet $ws @params
            }
        }

        # It now doesn't matter if the conditional formating rules are passed in $conditionalText or $conditional format.
        # Just one with an alias for compatiblity it will break things for people who are using both at once
        foreach ($c in  (@() + $ConditionalText  +  $ConditionalFormat) ) {
            try {
                #we can take an object with a .ConditionalType property made by New-ConditionalText or with a .Formatter Property made by New-ConditionalFormattingIconSet or a hash table
                if ($c.ConditionalType) {
                    $cfParams = @{RuleType = $c.ConditionalType;    ConditionValue = $c.Text ;
                           BackgroundColor = $c.BackgroundColor; BackgroundPattern = $c.PatternType  ;
                           ForeGroundColor = $c.ConditionalTextColor}
                    if ($c.Range) {$cfParams.Range = $c.Range}
                    else          {$cfParams.Range = $ws.Dimension.Address }
                    Add-ConditionalFormatting -WorkSheet $ws @cfParams
                    Write-Verbose -Message "Added conditional formatting to range $($c.range)"
                }
                elseif ($c.formatter)  {
                    switch ($c.formatter) {
                        "ThreeIconSet" {Add-ConditionalFormatting -WorkSheet $ws -ThreeIconsSet $c.IconType -range $c.range -reverse:$c.reverse  }
                        "FourIconSet"  {Add-ConditionalFormatting -WorkSheet $ws  -FourIconsSet $c.IconType -range $c.range -reverse:$c.reverse  }
                        "FiveIconSet"  {Add-ConditionalFormatting -WorkSheet $ws  -FiveIconsSet $c.IconType -range $c.range -reverse:$c.reverse  }
                    }
                    Write-Verbose -Message "Added conditional formatting to range $($c.range)"
                }
                elseif ($c -is [hashtable] -or  $c -is[System.Collections.Specialized.OrderedDictionary]) {
                    if (-not $c.Range -or $c.Address) {$c.Address = $ws.Dimension.Address }
                    Add-ConditionalFormatting -WorkSheet $ws @c
                }
            }
            catch {throw "Error applying conditional formatting to worksheet $_"}
        }

        if ($CellStyleSB) {
            try {
                $TotalRows = $ws.Dimension.Rows
                $LastColumn = $ws.Dimension.Address -replace "^.*:(\w*)\d+$" , '$1'
                & $CellStyleSB $ws $TotalRows $LastColumn
            }
            catch {Write-Warning -Message "Failed processing CellStyleSB in worksheet '$WorksheetName': $_"}
        }

        #Can only add password, may want to support -password $Null removing password.
        if ($Password) {
            try {
                $ws.Protection.SetPassword($Password)
                Write-Verbose -Message 'Set password on workbook'
            }

            catch {throw "Failed setting password for worksheet '$WorksheetName': $_"}
        }

        if ($PassThru) {       $pkg   }
        else {
            if ($ReturnRange) {$dataRange }

            if ($Password) { $pkg.Save($Password) }
            else           { $pkg.Save() }
            Write-Verbose -Message "Saved workbook $($pkg.File)"
            if ($ReZip) {
                Write-Verbose -Message "Re-Zipping $($pkg.file) using .NET ZIP library"
                try {
                    Add-Type -AssemblyName 'System.IO.Compression.Filesystem' -ErrorAction stop
                }
                catch {
                    Write-Error "The -ReZip parameter requires .NET Framework 4.5 or later to be installed. Recommend to install Powershell v4+"
                    continue
                }
                try {
                    $TempZipPath = Join-Path -Path ([System.IO.Path]::GetTempPath()) -ChildPath ([System.IO.Path]::GetRandomFileName())
                    [io.compression.zipfile]::ExtractToDirectory($pkg.File, $TempZipPath)  | Out-Null
                    Remove-Item $pkg.File -Force
                    [io.compression.zipfile]::CreateFromDirectory($TempZipPath, $pkg.File) | Out-Null
                }
                catch {throw "Error resizipping $path : $_"}
            }

            $pkg.Dispose()

            if ($Show) { Invoke-Item $Path }
        }

    }
}

function Add-WorkSheet  {
    <#
      .Synopsis
        Adds a workshet to an existing workbook.
      .Description
        If the named worksheet already exists, the -Clearsheet parameter decides whether it should be deleted and a new one returned,
        or if not specified the existing sheet will be returned. By default the sheet is created at the end of the work book, the
        -MoveXXXX switches allow the sheet to be [re]positioned at the start or before or after another sheet. A new sheet will only be
        made the default sheet when excel opens if -Activate is specified.
      .Example
        $WorksheetActors = $ExcelPackage | Add-WorkSheet -WorkSheetname Actors
 
        $ExcelPackage holds an Excel package object (returned by Open-ExcelPackage, or Export-Excel -passthru).
        This command will add a sheet named 'Actors', or return the sheet if it exists, and the result is stored in $WorkSheetActors.
      .Example
        $WorksheetActors = Add-WorkSheet -ExcelPackage $ExcelPackage -WorkSheetname "Actors" -ClearSheet -MoveToStart
 
        This time the Excel package object is passed as a parameter instead of piped. If the 'Actors' sheet already exists it is deleted
        and re-created. The new sheet will be created last in the workbook, and -MoveToStart Moves it to the start.
      .Example
        $null = Add-WorkSheet -ExcelWorkbook $wb -WorkSheetname $DestinationName -CopySource $sourceWs -Activate
        This time a workbook is used instead of a package, and a worksheet is copied - $SourceWs is a worksheet object, which can come
        from the same workbook or a different one. Here the new copy of the data is made the active sheet when the workbook is opened.
    #>

    [cmdletBinding()]
    [OutputType([OfficeOpenXml.ExcelWorksheet])]
    param(
        #An object representing an Excel Package.
        [Parameter(Mandatory = $true, ValueFromPipeline = $true, ParameterSetName = "Package", Position = 0)]
        [OfficeOpenXml.ExcelPackage]$ExcelPackage,
        #An Excel Workbook to which the Worksheet will be added - a Package contains one Workbook, so you can use whichever fits at the time.
        [Parameter(Mandatory = $true, ParameterSetName = "WorkBook")]
        [OfficeOpenXml.ExcelWorkbook]$ExcelWorkbook,
        #The name of the worksheet, 'Sheet1' by default.
        [string]$WorksheetName ,
        #If the worksheet already exists, by default it will returned, unless -ClearSheet is specified in which case it will be deleted and re-created.
        [switch]$ClearSheet,
        #If specified, the worksheet will be moved to the start of the workbook.
        #MoveToStart takes precedence over MoveToEnd, Movebefore and MoveAfter if more than one is specified.
        [Switch]$MoveToStart,
        #If specified, the worksheet will be moved to the end of the workbook.
        #(This is the default position for newly created sheets, but this can be used to move existing sheets.)
        [Switch]$MoveToEnd,
        #If specified, the worksheet will be moved before the nominated one (which can be an index starting from 1, or a name).
        #MoveBefore takes precedence over MoveAfter if both are specified.
        $MoveBefore ,
        # If specified, the worksheet will be moved after the nominated one (which can be an index starting from 1, or a name or *).
        # If * is used, the worksheet names will be examined starting with the first one, and the sheet placed after the last sheet which comes before it alphabetically.
        $MoveAfter ,
        #If there is already content in the workbook the new sheet will not be active UNLESS Activate is specified.
        [switch]$Activate,
        #If worksheet is provided as a copy source the new worksheet will be a copy of it. The source can be in the same workbook, or in a different file.
        [OfficeOpenXml.ExcelWorksheet]$CopySource,
        #Ignored but retained for backwards compatibility.
        [Switch] $NoClobber
    )
    #if we were given a workbook use it, if we were given a package, use its workbook
    if      ($ExcelPackage -and -not $ExcelWorkbook) {$ExcelWorkbook = $ExcelPackage.Workbook}

    # If WorksheetName was given, try to use that worksheet. If it wasn't, and we are copying an existing sheet, try to use the sheet name
    # If we are not copying a sheet, and have no name, use the name "SheetX" where X is the number of the new sheet
    if      (-not $WorksheetName -and $CopySource -and -not $ExcelWorkbook[$CopySource.Name]) {$WorksheetName = $CopySource.Name}
    elseif  (-not $WorksheetName) {$WorksheetName = "Sheet" + (1 + $ExcelWorkbook.Worksheets.Count)}
    else    {$ws = $ExcelWorkbook.Worksheets[$WorksheetName]}

    #If -clearsheet was specified and the named sheet exists, delete it
    if      ($ws -and $ClearSheet) { $ExcelWorkbook.Worksheets.Delete($WorksheetName) ; $ws = $null }

    #Copy or create new sheet as needed
    if (-not $ws -and $CopySource) {
          Write-Verbose -Message "Copying into worksheet '$WorksheetName'."
          $ws = $ExcelWorkbook.Worksheets.Add($WorksheetName, $CopySource)
    }
    elseif (-not $ws) {
          $ws = $ExcelWorkbook.Worksheets.Add($WorksheetName)
          Write-Verbose -Message "Adding worksheet '$WorksheetName'."
    }
    else {Write-Verbose -Message "Worksheet '$WorksheetName' already existed."}
    #region Move sheet if needed
    if     ($MoveToStart) {$ExcelWorkbook.Worksheets.MoveToStart($WorksheetName) }
    elseif ($MoveToEnd  ) {$ExcelWorkbook.Worksheets.MoveToEnd($WorksheetName)   }
    elseif ($MoveBefore ) {
        if ($ExcelWorkbook.Worksheets[$MoveBefore]) {
            if ($MoveBefore -is [int]) {
                $ExcelWorkbook.Worksheets.MoveBefore($ws.Index, $MoveBefore)
            }
            else {$ExcelWorkbook.Worksheets.MoveBefore($WorksheetName, $MoveBefore)}
        }
        else {Write-Warning "Can't find worksheet '$MoveBefore'; worsheet '$WorksheetName' will not be moved."}
    }
    elseif ($MoveAfter  ) {
        if ($MoveAfter -eq "*") {
            if ($WorksheetName -lt $ExcelWorkbook.Worksheets[1].Name) {$ExcelWorkbook.Worksheets.MoveToStart($WorksheetName)}
            else {
                $i = 1
                While ($i -lt $ExcelWorkbook.Worksheets.Count -and ($ExcelWorkbook.Worksheets[$i + 1].Name -le $WorksheetName) ) { $i++}
                $ExcelWorkbook.Worksheets.MoveAfter($ws.Index, $i)
            }
        }
        elseif ($ExcelWorkbook.Worksheets[$MoveAfter]) {
            if ($MoveAfter -is [int]) {
                $ExcelWorkbook.Worksheets.MoveAfter($ws.Index, $MoveAfter)
            }
            else {
                $ExcelWorkbook.Worksheets.MoveAfter($WorksheetName, $MoveAfter)
            }
        }
        else {Write-Warning "Can't find worksheet '$MoveAfter'; worsheet '$WorksheetName' will not be moved."}
    }
    #endregion
    if ($Activate) {Select-Worksheet -ExcelWorksheet $ws  }
    if ($ExcelPackage -and -not (Get-Member -InputObject $ExcelPackage -Name $ws.Name)) {
        $sb = [scriptblock]::Create(('$this.workbook.Worksheets["{0}"]' -f $ws.name))
        Add-Member -InputObject $ExcelPackage -MemberType ScriptProperty -Name $ws.name -Value $sb
    }
    return $ws
}

function Select-Worksheet {
   <#
      .SYNOPSIS
        Sets the selected tab in an Excel workbook to be the chosen sheet and unselects all the others.
      .DESCRIPTION
        Sometimes when a sheet is added we want it to be the active sheet, sometimes we want the active sheet to be left as it was.
        Select-Worksheet exists to change which sheet is the selected tab when Excel opens the file.
      .EXAMPLE
        Select-Worksheet -ExcelWorkbook $ExcelWorkbook -WorksheetName "NewSheet"
        $ExcelWorkbook holds a workbook object containing a sheet named "NewSheet";
        This sheet will become the [only] active sheet in the workbook
      .EXAMPLE
        Select-Worksheet -ExcelPackage $Pkg -WorksheetName "NewSheet2"
        $pkg holds an Excel Package, whose workbook contains a sheet named "NewSheet2"
        This sheet will become the [only] active sheet in the workbook.
      .EXAMPLE
        Select-Worksheet -ExcelWorksheet $ws
        $ws holds an Excel worksheet which will become the [only] active sheet
        in its workbook.
    #>

    param (
        #An object representing an ExcelPackage.
        [Parameter(Mandatory = $true, ValueFromPipeline = $true, ParameterSetName = 'Package', Position = 0)]
        [OfficeOpenXml.ExcelPackage]$ExcelPackage,
        #An Excel workbook to which the Worksheet will be added - a package contains one Workbook so you can use workbook or package as it suits.
        [Parameter(Mandatory = $true, ParameterSetName = 'WorkBook')]
        [OfficeOpenXml.ExcelWorkbook]$ExcelWorkbook,
        [Parameter(ParameterSetName='Package')]
        [Parameter(ParameterSetName='Workbook')]
        #The name of the worksheet "Sheet1" by default.
        [string]$WorksheetName,
        #An object representing an Excel worksheet.
        [Parameter(ParameterSetName='Sheet',Mandatory=$true)]
        [OfficeOpenXml.ExcelWorksheet]$ExcelWorksheet
    )
    #if we were given a package, use its workbook
    if      ($ExcelPackage   -and -not $ExcelWorkbook) {$ExcelWorkbook  = $ExcelPackage.Workbook}
    #if we now have workbook, get the worksheet; if we were given a sheet get the workbook
    if      ($ExcelWorkbook  -and $WorksheetName)      {$ExcelWorksheet = $ExcelWorkbook.Worksheets[$WorksheetName]}
    elseif  ($ExcelWorksheet -and -not $ExcelWorkbook) {$ExcelWorkbook  = $ExcelWorksheet.Workbook ; }
    #if we didn't get to a worksheet give up. If we did set all works sheets to not selected and then the one we want to selected.
    if (-not $ExcelWorksheet) {Write-Warning -Message "The worksheet $WorksheetName was not found." ; return }
    else {
        foreach ($w in $ExcelWorkbook.Worksheets) {$w.View.TabSelected = $false}
        $ExcelWorksheet.View.TabSelected = $true
    }
}

Function Add-ExcelName {
    <#
      .SYNOPSIS
        Adds a named-range to an existing Excel worksheet.
      .DESCRIPTION
        It is often helpful to be able to refer to sets of cells with a name rather than using their co-ordinates; Add-ExcelName sets up these names.
      .EXAMPLE
          Add-ExcelName -Range $ws.Cells[$dataRange] -RangeName $rangeName
          $WS is a worksheet, and $dataRange is a string describing a range of cells - e.g. "A1:Z10"
          which will become a named range, using the name in $rangeName.
    #>

    [CmdletBinding()]
    param(
        #The range of cells to assign as a name.
        [Parameter(Mandatory=$true)]
        [OfficeOpenXml.ExcelRange]$Range,
        #The name to assign to the range. If the name exists it will be updated to the new range. If no name is specified, the first cell in the range will be used as the name.
        [String]$RangeName
    )
    try {
        $ws = $Range.Worksheet
        if (-not $RangeName) {
            $RangeName = $ws.Cells[$Range.Start.Address].Value
            $Range  = ($Range.Worksheet.cells[($range.start.row +1), $range.start.Column ,  $range.end.row, $range.end.column])
        }
        if ($RangeName -match '\W') {
            Write-Warning -Message "Range name '$RangeName' contains illegal characters, they will be replaced with '_'."
            $RangeName = $RangeName -replace '\W','_'
        }
        if ($ws.names[$RangeName]) {
            Write-verbose -Message "Updating Named range '$RangeName' to $($Range.FullAddressAbsolute)."
            $ws.Names[$RangeName].Address = $Range.FullAddressAbsolute
        }
        else  {
            Write-verbose -Message "Creating Named range '$RangeName' as $($Range.FullAddressAbsolute)."
            $ws.Names.Add($RangeName, $Range) | Out-Null
        }
    }
    catch {Write-Warning -Message "Failed adding named range '$RangeName' to worksheet '$($ws.Name)': $_"  }
}

function Add-ExcelTable {
    <#
      .SYNOPSIS
        Adds Tables to Excel workbooks.
      .DESCRIPTION
        Unlike named ranges, where the name only needs to be unique within a sheet, Table names must be unique in the workbook
        Tables carry formatting by default have a filter. The filter, header, Totals, first and last column highlights
      .EXAMPLE
        Add-ExcelTable -Range $ws.Cells[$dataRange] -TableName $TableName
 
        $WS is a worksheet, and $dataRange is a string describing a range of cells - e.g. "A1:Z10"
        this range which will become a table, named $TableName
      .EXAMPLE
        Add-ExcelTable -Range $ws.cells[$($ws.Dimension.address)] -TableStyle Light1 -TableName Musictable -ShowFilter:$false -ShowTotal -ShowFirstColumn
        Again $ws is a worksheet, range here is the whole of the active part of the worksheet. The table style and name are set,
        the filter is turned off, and a "Totals" row added, and first column is set in bold.
    #>

    [CmdletBinding()]
    [OutputType([OfficeOpenXml.Table.ExcelTable])]
    param (
        #The range of cells to assign to a table.
        [Parameter(Mandatory=$true)]
        [OfficeOpenXml.ExcelRange]$Range,
        #The name for the Table - this should be unqiue in the Workbook.
        [Parameter(Mandatory=$true)]
        [String]$TableName,
        #The Style for the table, by default "Medium6" is used
        [OfficeOpenXml.Table.TableStyles]$TableStyle = 'Medium6',
        #By default the header row is shown - it can be turned off with -ShowHeader:$false.
        [Switch]$ShowHeader ,
        #By default the filter is enabled - it can be turned off with -ShowFilter:$false.
        [Switch]$ShowFilter,
        #Show total adds a totals row. This does not automatically sum the columns but provides a drop-down in each to select sum, average etc
        [Switch]$ShowTotal,
        #A HashTable in the form ColumnName = "Average"|"Count"|"CountNums"|"Max"|"Min"|"None"|"StdDev"|"Sum"|"Var" - if specified, -ShowTotal is not needed.
        [hashtable]$TotalSettings,
        #Highlights the first column in bold.
        [Switch]$ShowFirstColumn,
        #Highlights the last column in bold.
        [Switch]$ShowLastColumn,
        #By default the table formats show striped rows, the can be turned off with -ShowRowStripes:$false
        [Switch]$ShowRowStripes,
        #Turns on column stripes.
        [Switch]$ShowColumnStripes,
        #If -PassThru is specified, the table object will be returned to allow additional changes to be made.
        [Switch]$PassThru
    )
    try {
        if ([OfficeOpenXml.FormulaParsing.ExcelUtilities.ExcelAddressUtil]::IsValidAddress($TableName)) {
            Write-Warning -Message "$tableName reads as an Excel address, and so is not allowed as a table name."
            return
        }
        if ($tableName -notMatch '^[A-Z]') {
            Write-Warning -Message "$tableName is not allowed as a table name because it does not begin with a letter."
            return
        }
        if ($TableName -match "\W") {
            Write-Warning -Message "At least one character in $TableName is illegal in a table name and will be replaced with '_' . "
            $TableName = $TableName -replace '\W', '_'
        }
        $ws = $Range.Worksheet
        #if the table exists in this worksheet, update it.
        if ($ws.Tables[$TableName]) {
            $tbl =$ws.Tables[$TableName]
            $tbl.TableXml.table.ref = $Range.Address
            Write-Verbose -Message "Re-defined table '$TableName', now at $($Range.Address)."
        }
        elseif ($ws.Workbook.Worksheets.Tables.Name -contains $TableName) {
            Write-Warning -Message "The Table name '$TableName' is already used on a different worksheet."
            return
        }
        else {
            $tbl = $ws.Tables.Add($Range, $TableName)
            Write-Verbose -Message "Defined table '$TableName' at $($Range.Address)"
        }
        #it seems that show total changes some of the others, so the sequence matters.
        if     ($PSBoundParameters.ContainsKey('ShowHeader'))        {$tbl.ShowHeader        = [bool]$ShowHeader}
        if     ($PSBoundParameters.ContainsKey('TotalSettings'))     {
            $tbl.ShowTotal = $true
            foreach ($k in $TotalSettings.keys) {
                if (-not $tbl.Columns[$k]) {Write-Warning -Message "Table does not have a Column '$k'."}
                elseif ($TotalSettings[$k] -notin @("Average", "Count", "CountNums", "Max", "Min", "None", "StdDev", "Sum", "Var") ) {
                    Write-wanring "'$($TotalSettings[$k])' is not a valid total function."
                }
                else {$tbl.Columns[$k].TotalsRowFunction = $TotalSettings[$k]}
            }
        }
        elseif ($PSBoundParameters.ContainsKey('ShowTotal'))         {$tbl.ShowTotal         = [bool]$ShowTotal}
        if     ($PSBoundParameters.ContainsKey('ShowFilter'))        {$tbl.ShowFilter        = [bool]$ShowFilter}
        if     ($PSBoundParameters.ContainsKey('ShowFirstColumn'))   {$tbl.ShowFirstColumn   = [bool]$ShowFirstColumn}
        if     ($PSBoundParameters.ContainsKey('ShowLastColumn'))    {$tbl.ShowLastColumn    = [bool]$ShowLastColumn}
        if     ($PSBoundParameters.ContainsKey('ShowRowStripes'))    {$tbl.ShowRowStripes    = [bool]$ShowRowStripes}
        if     ($PSBoundParameters.ContainsKey('ShowColumnStripes')) {$tbl.ShowColumnStripes = [bool]$ShowColumnStripes}
        if     ($PSBoundParameters.ContainsKey('TableStyle'))        {$tbl.TableStyle        = $TableStyle}

        if ($PassThru) {return $tbl}
    }
    catch {Write-Warning -Message "Failed adding table '$TableName' to worksheet '$WorksheetName': $_"}
}