A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Hello DSmith_228.
Welcome to the Microsoft Community.
I'm sorry to learn that you are facing a document failure issue and I understand your anxiety very well.
Have you been able to find your document in OneDrive?
Considering that your document is not saving properly at the moment, in order to protect the data in it, I would recommend saving the document as a new one or manually copying the data into a new one.
In addition, you mentioned that you are also experiencing problems with Word, is this the same problem as in Excel? Since you haven't edited this document for a few years, there may be some compatibility issues with older file types. If possible, you can also share the file you are experiencing problems with us via private message and we can help you troubleshoot the problem.
Your files are collected for analysis only, we will not disclose your private information, but we still recommend that you dispose of any private content that may be in it.
We appreciate your understanding and support.
Best Regards
Eliac | Microsoft Community Support Specialist