A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
OK, I have this issue, too. A file saved in OneDrive through my work's 365 subscription. OneDrive app installed and working correctly. MS Excel 2016 also installed latest version through Office 365. Three hours of work lost with no autosave files to be seen, including in the standard folder.
This is a serious issue, Microsoft. I feel like I have gone back to 1997; please take very seriously. It is clearly still a recurring issue as of May 2018.