What is the exact error message?

If same as below have a look at this KB article.

"The file may have been changed..." error when you save workbook to network
server in Excel 2002 and 2003

http://support.microsoft.com/default.aspx?kbid=324491

Myrna Larson also reported that she got this error when opening a workspace
(*.xlw) file.

Opening the workbooks individually solved the problem.


Gord Dibben Excel MVP

On Wed, 11 Jul 2007 14:10:56 -0700, "George W. Barrowcliff"
wrote:

A while ago I upgraded my disk drive from 40 to 120 GB using the Acronis
True Image product. The only issues I experienced is I was forced to
reinstall both Adobe V8 Professional and also Microsoft Streets and Trips.

One other issue was also created and I cannot find why.

When I click on Save, I always get a window that pops up with the message:

"The file 'BalanceSheet.XLS' may have been changed by another user since you
last saved it. In that case, what do you want to do?" and I have the
option of Saving a Copy or Overwrite Changes.

I know that no other user has this open, I have no application that has it
open and no changes have been made to the original since I opened the spread
sheet.

The only other thing that might be important is the spreadsheet is on a
networked drive, assigned to Z: on my system.

What is Excel looking at that causes this message?

TIA, GWB