Unpack the trainer from the archive into the directory with the game
Hotkeys =):
F2 – Infinite Ammo
F3 – God Mode
F5 – Remove Gravity
F7 – Infinite Flashlight
Killing Flor: Trainer [1.0] Free Download
NUMPAD1 – Save Position
NUMPAD2 – Teleport
F8 – Add 500 $