I'm in the market for apps that can import, edit, and export microsoft office files like word and excel. The few that I have seen on the app store seem to be fairly expensive so I would like some recommendations before committing to one.

I'll probably just end up getting Pages and Numbers by Apple if I can't find anything else but those seemed like they were lacking in some features as well and they are $10 each while some other apps are $10 and work on multiple file types.

Any info or recommendations from users that have tried these apps would be appreciated.