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I opened, edited and saved a file in Excel several times last week without issue. This included adding a new sheet, then editing it over several days.
The file is in my work account's OneDrive.
Today I opened that same file to find that all my recent work (the whole sheet) has vanished; it seems to now be a version from 2 months ago, according to the last saved date. So naturally there is nothing in version history, and I cannot find any way to check for unsaved recent changes, but in any case, it was saved and opened again several times last week without issue, so I wouldn't expect unsaved recent changes to contain anything except perhaps the most recent edit.
How is this even possible!! Is there any way to recover the many hours of work I have lost?
My device is Windows 11, I have a personal account and a work account on the machine (and I have checked; it wasn't saved in my personal OneDrive).
A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
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After 3 hours of looking, this was the ONLY thing that worked for me. Will be exporting my data from Excel to a different program. Never had this issue with Google Sheets (free?!)