Repair a corrupted workbook - Microsoft Support Recover a corrupted workbook manually when Excel can't start File Recovery mode automatically and learn about saving backup and recovery files to prevent losing your work
Recover your Microsoft 365 files How to open, save, or delete a recovered version of your Microsoft 365 file using the Document Recovery task pane
Repairing a corrupted workbook - Microsoft Support When you open a workbook that has been corrupted, Excel automatically starts File Recovery mode and attempts to reopen and simultaneously repair the workbook
Open a document after a file corruption error - Microsoft Support The Open and Repair command might be able to recover your file Click File > Open > Browse and then go to the location or folder where the document (Word), workbook (Excel), or presentation (PowerPoint) is stored