If you are getting the Data source reference is not valid while trying to create a pivot table in Microsoft Excel, see this post for the fix.

If the Excel Date Filter is not grouping by month, enable grouping dates in the AutoFilter menu, set dates in the proper format, etc.

Combine an Excel custom format with data validation and remove the pressure for input perfection from personnel by letting Excel do the work.

A CSV (comma-separated values) file is a text file in which information is separated by commas. CSV files are most commonly encountered in spreadsheets and databases. You can use a CSV file to ...