I have an excel file that I share daily for use with employees that
know limited excel. I mention this because every day, the file
"disappears" from our network drive. By this I mean that it is renamed
to an unknown extension that looks kind of like "0FA123D" etc.

I know this happens to the file when it is shared and also not shared,
but accessed by more than one person. Right now I have the file open
by one location for the day and just accessed by another. They close
it and re-open when they need to see the updates.

Any thoughts/