Searching the binary data of the file for readable text.
Used to browse through different color planes of an image to find hidden text or QR codes. cats 3.rar
Knowing the source will help in providing the exact flag or solution steps. Appendix:Australian English military slang - Wiktionary Searching the binary data of the file for readable text
If you are currently working on this file, here is the standard process used in similar challenges: cats 3.rar