Yes, he tried, and it won't matter.
My spreadsheet is brand new - literally 14 lines. It's simply all of the parameters I mapped out for each and every VM I made on my machine last month. No tables, no data sources, no diagrams, no functions, no calculations, literally nothing but text data. It's not saved to a folder that synchronizes with OneDrive.
This is what it looks like:
16 lines. 0 calculations. Literally nothing but copy and paste (to avoid typographical issues with VMs when creating them, as I am the typo king) - and it exhibits the exact same behavior as the OP is trying to fix.
As I said, this has been happening to me for months, but I've been running the Officer Insider Beta builds for years, and now that someone else finally has the issue, tracking it down, if the OP is willing to put time into it, may be doable. My one machine doesn't make for a great way to test these little, obscure issues easily lol.