Here's a thread from a few days ago.

http://www.google.com/groups?hl=en&l...7d03ad4&rnum=1

HTH
Paul
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Be advised to back up your WorkBook before attempting to make changes.
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I have an excel sheet that is used over a wide network
where occasionally a user is required to log on and add
some data and then close out. Sometimes a user forgets
to log out of the program and locks it up for everyone
else. Multi user IS NOT the way to go just in case two
users saving at similar times.

Does anyone know of an easy way to shut down Excel after,
say two minutes, of non keyboard activity, remembering
that this is spread over maybe a couple of hundred
computers from a server, so windows log out / non activity
is not viable.

Thanks