Good day, Jacqueline.
Thanks for reaching out to our Microsoft Community Forum. Please accept our sincerest hope that all is well.
From the description provided you seem to have lost some Excel worksheets and you would like to recover them.
This issue may have been caused by settings in Windows or Office that need to be changed. Or it may also be a problem with Microsoft account you are using. So, let us work together as a team to get to the bottom of this. But to better assist you I need to ask:
- What version of Office are you using? Microsoft 365 Personal? Microsoft 365 Family? I specifically need the Product name and Version number as highlighted in the guide and photo below.
https://support.microsoft.com/en-us/office/about-office-what-version-of-office-am-i-using-932788b8-a3ce-44bf-bb09-e334518b8b19

- Do you have AutoSave enabled on Excel before you lost this worksheet? Link below for reference.
https://support.microsoft.com/en-us/office/what-is-autosave-6d6bd723-ebfd-4e40-b5f6-ae6e8088f7a5
- Have you tried to recover the file using the steps in the links below?
A) https://support.microsoft.com/en-us/office/restore-deleted-files-or-folders-in-onedrive-949ada80-0026-4db3-a953-c99083e6a84f
B) https://support.microsoft.com/en-us/office/restore-your-onedrive-fa231298-759d-41cf-bcd0-25ac53eb8a15
Hope to hear from you soon.
Respectfully,
Glenn Rue
Forum Moderator
Microsoft Community