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My suggestion on what on what you are supposed to do is, follow the instructions. They're quite clear. And those instructions start with backing up the files before editing, so there's no messing up your game. You just restore the originals to undo the edits.
I am not computer savvy if I wanted to mess my computer or game up I would have already done that wiki solution. I am not comfortable messing with something I have no idea how to even do it. Hence why I was asking for help and they aren't that clear on how to do it.