[Solved] Unzip rar files

There are many programs available that should work:
File-Roller, engrampa, Ark, Xarchiver
In the bodhi appcenter there is File-Roller www.bodhilinux.com/a/file-roller-archive-manager/
All of these programs, however, are only frontends.
For rar support, you need to also install a package named "unrar". It might be pulled in as a dependency.
This might help: itsfoss.com/use-rar-ubuntu-linux/