User blog:StellerL/How do I extract .wz files?

I would really like to help out more with the wiki, especially in fixing up some of the entries in the long list of wanted pages. I really want to focus on the NPC template first, a lot of its links are broken, more than half in fact. However, I don't know how to extract any information from .wz files, and this makes it pretty hard to get pictures for the NPCs, along with just information about the game in general.

I would really appreciate it if someone could point me in the direction of a program that I can use :3