I recorded a simple macro and saved it only in a specific workbook. I placed
a menu command on that toolbar.

Now every workbook I open has the menu command in it and when I click the
menu command that appears in a workbook where it shouldn't, it automatically
opens up the worksheet that the macro was originally designed for.

How can I save the recorded macro and menu command only in one workbook and
be sure that it doesn't appear anywhere else?