Hi Bryan

I tried this few days back with your original post. When you click
AssignMacro is that displaying just the xls file name or xls!Macroname as
below.

a12.xls!SaveToDrive (since I have entered 'a12' to Range("A12")

and then what happens next.....if you again click the button...

If this post helps click Yes
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Jacob Skaria