Hey I need a good guide on how to unpack and repack a pvf file.

I've been playing nexon's DFO and their main file for skills and stats are in the skills.pvf

So i was told if I can unpack and repack it I can change all the stats and everything to make it awesome for me.

I just don't know how to.

I have looked on google but I can't find a simple way or any real way.

So i decided to come to the experts.


Thanks a lot for the help