Try extracting the contents using 7-Zip or the 7z x command. If prompted for a password, look for clues in the challenge description or related files. Password Cracking (If Locked) If the archive is encrypted: Extract the hash using 7z2john.pl .
: Files that won't open until you fix the hex header.
Run or Hashcat against the hash using a wordlist like rockyou.txt .
BECK CLIP SYSTEMS SP. Z O. O.
ul. Przewozowa 13
62-064 Plewiska
NIP 7773298904
Polska