Do you have the or the name of the event where you found this file?
: In forensic challenges, these "parts" are sometimes hidden within a larger disk image or network capture. You would use tools like binwalk or foremost to extract them. 67111212bc454962a2c439b15930eb65.part75.rar
: Often, CTF creators intentionally corrupt the RAR headers. You may need to use a hex editor (like 010 Editor or HxD) to fix the magic bytes at the start of the file: RAR 5.0 signature : 52 61 72 21 1A 07 01 00 RAR 4.x signature : 52 61 72 21 1A 07 00 Do you have the or the name of
: You typically need all parts (Part 1 through Part X) in the same directory to extract the contents. If you only have part 75, you may need to locate the rest of the archive segments. : Often, CTF creators intentionally corrupt the RAR headers