I have only enabled main component of Debian repository (Debian 8, Jessie) yet file-roller (Archive Manager) can extract a RAR compressed file.I have the following programs installed:file-roller, p7zip-fullbut I do not have these programs on my machine, p7zip, p7zip-rar, rar, unrar, unrar-free.What is the backend that file-roller is using?
Why can file-roller extract rar files in Debian 8?
debian;rar;file roller
Posting don's comment as a potential Answer:It's using unar (from unarchiver) as of v 3.6