I can open up .rar and .zip files, and more archive files with Izarc, so i highly suggest Izarc, you can also make archive files too, .zip only i think, or there may be an option
http://www.izarc.org/download.htmlIt's quite simple, well, to me anyway, i don't know if it's hard to figure out at first
Edit: Nope, the default archive filetypes are ZIP, CAB, BH, JAR, LHA, 7-ZIP, BGA, YZ1, wow, ZIP and 7-ZIP are the only archive files i know in that list xD