at first I just want to thank you for the great tutorial, but I still have a problem.
I am working with a file which is accessible by many users via network. When I open the excel-file I want to check, whether the file is opened by an other user or not. I just want to work with it if it is not opened.
A simple die() if it is in use would be enough for me.
So, is it possible to check whether an other user has opened the file?
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