I need help with MPQ

[didas]

I want to know how to create a MPQ archive to put a certain file in their. So Worldofwarcraft can read the file. The type of files I want to put in their is .Obj .Mtl and 2 .TGA

[warsheep]

You cant choose what new files to add,
You'll need to "replace" em, in another file, with the same name. Unless you want to do some major changes, and do it all the hard way...