I've created a set of a subroutines for a specific Excel file and an
associated toolbar.

All of the subroutines contained within this Excel file or any copy of
this file. Is there any way to make it so the associated toolbar is
only visible (or available) when one of these files are opened?

I know you can attach a toolbar to a file, but the toolbar remains
available even if I have another file open.

Is there any way to make it so that a toolbar moves with the Excel
file?

Thanks!