PowerShell module to import/export Excel spreadsheets, without Excel. Check out the How To Videos https://www.youtube.com/watch?v=U3Ne_yX4tYo&list=PL5uoqS92stXioZw-u-ze_NtvSo0k0K0kq

Compare two excel files. and support git diff, for example: git diff theChangedExcelFile. The git diff config is needed, which is described in the below online version link. It provides great supports to ExcelBDD to check changes in excel file.