Always scan downloaded .rar files from unofficial sources for malware before opening, as common file names are sometimes used to disguise malicious scripts.
If you purchased a book from 0xWord , the .rar file may contain practical exercises or Proof of Concept (PoC) code mentioned in the text. 0xword.rar
If you have lost the password for a legitimate file you own, you can use recovery tools like PassFab for RAR or Advanced RAR Password Recovery to perform dictionary or brute-force attacks. Always scan downloaded