Hi, I'm Leonielhou, an independent advisor and user like you, I'd be happy to help clarify any questions you may have. I can not apologize enough. Remove Excel preferences and Office settings. 1. Make sure all Microsoft Office for Mac programs are closed. 2. Open the root/hidden library folder in the Go menu. Note: Library folders are hidden on Mac OSX Yosemite. To see this folder, hold down the OPTION key and select the Go menu. 3. Open the "Group Container" folder. 4. Find the folder whose name ends with "". Office" and open it. 5. Locate the Com.microsoft.officeprefs.plist file in this folder. 6. Delete this file by dragging it to the Trash. This removes the Office preferences that you set when you first started the application. 7. Restart the application and see if the issue is resolved. If the problem persists, delete the entire folder found in step D. This will remove all previous settings and preferences set across all applications. Note: This will reset Office to the initial first run phase. It also recreates the folder in the ~/Library/Group container location. I hope I can give you valuable information based on my understanding of your concerns.
https://learn.microsoft.com/en-us/office/troubleshoot/office-for-mac/excel-mac-error-application-quit-unexpectedly
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