I can search for specific documentation if you provide the or the game it belongs to!
Many .rar files from forums require a password found on the original download page. Delusion Paladins.rar
If you are looking for the standard "Readme" or descriptive text that usually accompanies such a file, it typically includes: (e.g., v1.0.2). Installation Guide: "Extract to the /game/mods folder." Credits: The name of the modder or developer group. I can search for specific documentation if you