I think Glow is right that Astro File Manager will work on just about anything except maybe files compressed with 7zip. For those you might want to check out
AndroZip File Manager.
Personally, as Ivan suggests above, I prefer to use my PC to manage .rar files with 7-zip...so simple, fast and easy. To make it work on your PE will involve some hunting, research and lots of experimenting but, depending on your needs, might be worth it to you.