Somewhere in your code you can tell your macro to save the author name of all open workbooks.
You'll have to loop through all open workbooks storing the name of the workbook (.name) and the author (.BuiltinDocumentProperties("Last Author"))
It's referred to in code like: thisworkbook.name or thisworkbook.BuiltinDocumentProperties("Last Author")
so something like
You'll then have to use your own judgement as to which workbook / author is correct. The issue is you don't know how many other workbooks are open on the PC of the fella who opens workbook A. I'm assuming you also don't know the name of workbook A.
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