How annoying. for 10 years I have always closed workbooks using alt f c
It continued to work for a full year under Excel 2010.
Yesterday it stopped, even after a reboot.
alt f still brings me to the backstage tab.
Once on that tab, the alt key still causes the shortcut clues to appear next to every option, but none of the shortcuts work -- a have to click on the option.
I'll try an office repair later on today, but I am wondering if anyone has run across this problem before.