A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
I just started having this problem today also. Not sure why. Maybe an update bug?
Same here--started with the last update. i even called microsoft support. They basically uninstalled and reinstalled the programs and it worked for a few days but now it's doing it again. it's extremely frustrating.
I had the same problem (cell colour Blacks as editing the cell) but managed to solve it by highlighting the whole spreadsheet and clicking on No Fill in the cell fill colour dialogue box