Package alien

Converter between the rpm, dpkg, stampede slp, and Slackware tgz file formats

https://sourceforge.net/projects/alien-pkg-convert/

Alien is a program that converts between the rpm, dpkg, stampede
slp, and Slackware tgz file formats. If you want to use a package
from another distribution than the one you have installed on your
system, you can use alien to convert it to your preferred package
format and install it.

General Commands
Command Description
alien Convert or install an alien binary package