As you wish. It's just a program to read .pak files and repack/replace/import and extract files into this container. So if you don't want to believe a man who created the Fake/Biker/Low-Poly Crash mods with this program (and different costume mods too) - it's not my problem.

k since I don't wanna end up with another virus on my computer. As I just got finished removing another one from a fishy program when trying to extract files from the simpons hit n run.

Yes. Read about this program here:

https://www.reddit.com/r/nsanemods/comments/8x5uvk/pak_repacker_new_version/

Did download it but ran it and PC is giving out a warning saying a unrecognized app from starting.

Did you recieve this yourself?

Use "NST Pak Explorer":

http://twinsanity-hacking.tigersoftware.ru/viewtopic.php?f=2&t=6075

How do you openj the game fils in the first place?