To help me give you a more , could you tell me:
Running file gj.7z confirms it is a 7-zip archive data , version 0.4. To help me give you a more ,
Was this for a specific (e.g., PicoCTF, HackTheBox)? Did the file come with a password or a specific hint ? Are you stuck on a specific step of the extraction ? To help me give you a more ,