Pak Explorer - Editing Pak format archives. Packing and unpacking.
In addition to the QuArK map editor, without this program it will be difficult for you to unpack and package your created or modified map. P:S. When I created something in Quake, I did not even know that it was needed, without it all my work was in vain done at the time, at the same time I learned that it is necessary, although the editor has something similar, but for some reason in a separate application Pak Explorer works more convenient and correct. Great addition to the editor. I even put all the files right in Quark and created a shortcut to launch the application separately. Useful for map makers.