1: It's for Combat Arms, Liz was experimenting with the .rez files and found a way to edit them.
2: Yes, It is a picture extension, much like a .png or a .jpg .
I would be glad to help, Whitten, hit me up with a pm.
sounds cool. i used to texture for Oblivion, got some good skills built up. I checked out the topic, and the files look exactly the same as the standard .ddf's and .nddf's(texture maps[as in 3D bumps and ridges on a surface] that a simple-graphics game like CA might not have.)I used to work with.
Hint: Gimp excels in this particular field. It's how I first found Gimp, a pro who taught me a few things used it, and it really is a lot better than the nightmare of dealing with texture files in PS.
if you need any extra help i might have time.
edit: hehe i just figured out why you guys want this. unpatchable client-side-started invisibility hacks would be amazing.
LOL! B1ackAnge1 is a coder(i think im right) and he made a .rez unpacker quite a while ago, and he got it to work with the combat arms .rez files (dont ask me how). So, Liz wants a bunch of us to get together and tweak these files so we can make unpatchable wallhacks, see through walls, etc. There you go.