We share a workbook and my co-worker came to me today and insists she typed
information in multiple cells which is now missing. We do track the history
and I saw no record of the information. She insists she saved her
changes....but if she did not, is it possible it disappeared? We had the
update changes setting to Automatically every 5 minutes but not save "Just
see other users' changes". Could this have removed her data?

She was so frustrated I could not even look on her computer to see things
from her point of view. She insists the info just vanished...