ZipItQUOTE
Zip archives
A zip archive is any file that ends with the extension '.zip'. The zip format is popular on the IBM, and is widely used as an interplatform compression format. In addition, ZipIt can compress Macintosh applications and documents without losing any of their data. ZipIt is best used when transferring compressed documents to and from other computer types. Some examples are: text files, TIFF pictures, Excel databases, and QWK message packets, to name just a very few. Note that files that end in '.Z' or '.gz' are not ZipIt files, even though Netscape may give them a ZipIt icon.
$20 shareware. Just another option.