This UnrealPak is from Unreal Engine and it can use to pack/unpack the .pak files for Unreal Engine 4.22 NOTE: This is use for modding and experience unreal engine how stuff work. DO NOT ABUSE!
Usage
Download UnrealPak folder
Put all the .pak files in the same folder where cmd files are
Drag and drop 1 of the .pak file to unpack-UE4.22.cmd then it will automatic unpack the rest
When it complete, you should see the folder unpack. That unpack folder is where the files will be