One thing that might help (might not, but it only takes a couple minutes to
try). Close applications and clean out the temp directory:

C:\Documents and Settings\<username\Local Settings\Temp

Remove any *.exd files from this directory:

C:\Documents and Settings\Jon Peltier\Application Data\Microsoft\Forms

Reboot Windows, and try again.

- Jon
-------
Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
Peltier Technical Services, Inc. - http://PeltierTech.com
_______


"Tom Qin" <Tom wrote in message
...
Hi, we have a excel file, and when we open it in SP3, it would show 'File
error: Data may have been lost'. But in SP2, it's ok. And all data didn't
lost in SP3.

I have tried it on about 20 pc installed SP3 and SP2. Same problem
happened.

Please help!