If you need to download , these are the genuine file types from Rockstar:

If you’re creating content for a modding site, a fan page, or a tutorial, here’s a that avoids promoting piracy or unofficial executables.

If you're interested in playing GTA 5, consider purchasing it from a legitimate source. This way, you'll get:

To play GTA 5 safely, you must use official digital storefronts for PC or consoles: Grand Theft Auto V - Rockstar Games