Look for a "Readme" file. This will usually contain the actual guide or credits for the file's creator.
If you extract the file and see a .exe , .bat , or .msi file inside, do not open it unless you are 100% sure of the source. FK_JiMHPaohacmstt.rar
A file is a compressed archive. Unlike .zip files, which are natively supported by Windows and macOS, .rar files require third-party software to open. Look for a "Readme" file
However, if you are looking for a guide on how to safely handle and extract a file like this, here is a comprehensive guide to managing unknown .rar files. or .msi file inside
A video file, possibly a high-quality movie or tutorial.