A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Hi Nardjess,
Thanks for posting back and providing the detailed information.
Based on the error messages, I think some of the data in the workbook is corrupted. This can be caused by many reasons, especially if one of the users has a problem with their local environment that results in corrupted data after saving the file. In some of the cases where customers have experienced similar issues, they have mentioned that after opening the workbook in Excel for iPad, the user gets an error message when opening it in the Excel desktop app.
In this case, since the workbook is stored in SharePoint, I suggest you use the Version History feature to restore the workbook to a previous version. See if the previous version of the workbook still returns the error when opened.
Sorry for the inconvenience that happened to you. Appreciate your understanding and patience.
Sincerely,
George | Microsoft Community Moderator