Also Rob Bovey's VBA Code Cleaner
http://www.appspro.com/utilities/utilities.htm
For transporting, of course, you can zip the file with
and PKZIP like program, the following remains free only for home use:
http://www.ultimatezip.com
But Excel keeps a lot of garbage in unused areas, and
I don't know that anything that gets rid of that -- things like
remnants from another file. Assuming that it still does.
Finding your friends names, addresses and phone numbers
in a file that they were never a part of is not the best situation.
It is/was obviously reserving storage in an ill conceived manner.