On the same PC, one user logged in as user A can open a specific excel
spreadsheet. When another user with the same rights, logged in as user B,
tries to open the same spreadsheet, she gets a "Disk is full" message and it
won't let her open it. She can open other spreadsheets just fine though.
The excel file both user A and user B are viewing is a shared file.

When user B sits at another PC and logs on as user B and opens the excel
spreadsheet, it opens just fine.

User B has also seen these messages in the past couple of days:
"Access is Denied. Make sure the disk is not full or write protected and
that the file is not being used.

I'm know it's a space issue, but where since the file is shared? Any
suggestions would be greatly appreciated.

Thank you,
Julie