This archive format is used as an installation packet in the Unix operating system for updating, querying, checking, deleting and installing software products. The RPM archive is a database that is comprised of a single base of program packets and a large number of small databases. The system can store information about packet modifications, deletions and installations.
This is a compressed archive in the TAR container with the help of the BZIP tool. It was created for use in Unix systems. The TAR container combines several files into one archive that’s placed in a TBZ compressed file. They’re used as installation packets in the installers of some operating systems.