Otv4.zip

These often use XML-based scripting to modify game files.

If this is a CTF (Capture The Flag) challenge, a good write-up for a file like this usually involves: otv4.zip

If you can share the of the file (e.g., a specific GitHub repo, a discord server, or a CTF site), I can give you a tailored walk-through. These often use XML-based scripting to modify game files