If you are looking for instructions to include in a "Readme" or description file for this .rar:
The file refers to a specific software update package for the fighting game Guilty Gear -Strive - . This specific version (v1.17) was originally released to introduce the character Testament and implement cross-play beta features.
If the package is from a scene group (like CODEX or ElAmigos), copy the contents of the Crack or CODEX folder into the game's root directory, overwriting existing files. Important Note on Versions