The file must be shared to be shared. :) So perhaps your file is set to be
shared.
http://www.officearticles.com/excel/...soft_excel.htm

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Hope it helps!
Anne Troy
www.OfficeArticles.com

"RANDY" wrote in message
...
If one user open a file, how can I prevent the other user from open the
file
for editing. In the past Excel/Word normally display a read-only message
when
a file that is opened is being acced.

Randy