.rpm extension

File Type 1 RealPlayer Plug-in
File Format Proprietary (RealNetworks)
Usage Open manually
Rank ★ ☆ ☆  Uncommon
Description

Adds extra features or support for more formats to RealPlayer.

Open With
Windows

RealNetworks RealPlayer

Updated 2007
File Type 2 Red Hat Package Manager File
File Format Proprietary (Red Hat)
Usage Open manually; may be referenced by an application
Rank ★ ★ ★  Common
Description

Installation package originally developed for the Red Hat Linux operating system, but now used by many other Linux distributions as well; commonly used for installing programs on Linux systems.

RPM files can be converted to other formats, such as .DEB files, using a Debian program called Alien. The following Alien command converts the file package_name.rpm into a new file package_name.deb:

alien package_name.rpm

Open With
Macintosh

Dare to be Creative Archiver

The Unarchiver

Unix

Red Hat Package Manager

Alien

Updated February 18, 2011
Information from the PC File Extensions Reference
http://pc.net/extensions/file/rpm