How to fix a corrupt numbers file

I had a spreadsheet in number that I tried to revert back to a previous version, when I did the file became corrupt and now unreadable. I tried to download it from the cloud and that file had already synced and came unreadable as well. Is there a way to save the spreadsheet or is it corrupt for good?

Hi Janke,
If you have Time Machine or another backup system that keeps multiple versions, you may be able to work our way back to a version that does not demonstrate the corruption.
Regards,
Barry

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