Wait, why do you need that?
If it's for a game remember that the result will not work.
I have files from one game "Gun Disassembly 2", when unpacking "offzip" everything was unpacked successfully. I changed one file using a text document. Now I need to package it back with "Packzip" so that the output is: (.IVY as it was before and created using the zlib library)
the archive contains the original file, and in the folder unpack, but already changed.
The files in the folder must be packed back. How to do it correctly?