right click on the file, if you have an extractor (if you dont heres a yt tut on how to get one )
now click on "Extract Files..." give it a second and there should be a new file that popped up, double left click on it, now there should be some files in that file. click on the file with the logo of the game, if thats not there keep exploring until you find a file with the logo of the gamehope this helps!