Archive Manager
Archive Manager (previously File Roller) is the archive manager of the GNOME desktop environment.
Features
Archive Manager can:
Create and modify archives.
View the content of an archive.
View a file contained in the archive.
Extract files from the archive.
File Formats
Backend programs are needed to use Archive Manager as a frontend. Archive Manager supports the following file formats:
7z (.7z)
ar (.ar)
ARJ (.arj)
gzip (.tar.gz , .tgz)
bzip (.tar.bz , .tbz)
bzip2 (.tar.bz2 , .tbz2)
xz (.tar.xz)
compress (.tar.Z , .taz)
Portable Executable (.exe, .dll)
lzip (.tar.lz , .tlz)
LZO (.tar.lzo , .tzo)
JAR archives (.jar , .ear , .war)
LHA archives (.lzh)
RAR archives (.rar)
StuffIt archives (.bin, .sit)
tar
ZIP archives (.zip)
Zoo archives (.zoo)
Single files compressed with gzip, bzip, bzip2, compress, lzip, LZO, xz
ISO images (.iso) (read-only)
DEB (.deb) (read-only)
RPM (.rpm) (read-only)
Limitations
While Archive Manager has the ability to use various formats (7z, rar, etc.) with the appropriate plugins, it doesn't give the option to compress using different levels of compression via GUI (High, Normal/Fast, etc.) unlike many other utilities. This can be set however using gconf-editor.