You can browse through the contents of a Deb package (*.deb file) with gmc as if it were a locally mounted fileystem,> without having to unarchive and untar all the constituent components. You can also browse tarballs, gzips, bzips, gzipped tarballs, bzipped tarballs, and zips as well, providing that the attendant gzip, bzip, tar, and zip programs are all installed. Double click the archive in question and you can browse the archive as if it were a directory.