You can attach a toolbar to a file: open a file, right click on the
toolbar, choose "Customize" then on the toolbar tab click the "Attach"
button. Attach your toolbar, save the file, then copy the file to a
disk and take it to your other computer. Open it and your toolbar
should appear.
Note that your toolbar will become a permanent part of the second
computer's family of toolbars: closing the file won't delete it.
There are lots of code examples in Google showing how to create and
destroy commandbars when files are opened/closed.
HTH,
Bernie
MS Excel MVP