Noob question here. How would I be able to open and edit a .USA file?

Im just looking to take I guess some things from one file and copy them over to the other. I have UE3 UDK installed but I am not sure how to open a .usa file. Do I need something like Helix P4V: Visual Client? Thanks for any help!

Hello Wyled. This forum is for help with the UE4 engine. Here is a link to the UDK forums https://forums.epicgames./forumdisplay.php?366-UDK

.USA is a saved game file i am not sure why you would want to edit that but you will be more likely to find help there even though some of us here have a background in UE3 or UDK