See the flock documentation to check the various (and numerous) available flags, there is probably one of them that'll do what you want :) BTW you really should have posted this in its own thread, because it's a problem completely unrelated to the scope of this tutorial.

In reply to Re^3: Check whether the file is in use by an other user by wazoox
in thread Using Win32::OLE and Excel - Tips and Tricks by cacharbe

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