The archive contains the dll file.
Grand Theft Auto 5 (GTA V): Cheat (Fly Down v2.0.3) [1.48] Free Download
which must be injected using an injector which is in the cheat folder, after unpacking all the archives to a convenient place, but not to the game folder.
1.Go into story mode
2.We minimize the game and run the injector as administrator
3.Select FlyDown.dll
4. Expand the game and click *