A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
This is really annoying. I have company purchase orders on spread sheets and insert comments as to what the purchase was for. Each year I add another tab and carry on the process. I have found that on my 2014 spread sheet, every comment has disappeared. All other spread sheet comments are still there, right back to 2009. They just happen to be all in column D, not that, that is of any significance. This happened once a couple of months ago, and again two days ago. I caught this one quite quickly and was able to right click>properties>previous versions - and go back a couple of days, open the spread sheet and there they were. I saved it as Version 2, highlighted the 2014 column D and copied/pasted into the current spread sheet, which saved me having to go back and try to back fill.
I have no idea why this happens, or why it is only on the one spread sheet tab. Just glad I caught it this time. Hopefully the fix might help someone.