File Extension	File Type
7z	7-zip
bz, bz2	Bzip2
dmg.gz, dmg.z	Gzip disk image
gz, z	Gzip
rar	Rar archive
tar	Tape archive
tar.bz, tar.bz2, tbz, .tbz2	Bzipped tape archive
tar.gz, tar.z, tgz	Gzipped tape archive
tar.Z, taz	Compressed tape archive
svgz	Gzip Scalable Vector Graphic
Z	UNIX Compressed file
zip	Zip archive