Buy mod in mod dealers. Normal dealers can crash game.
- Download mod.
- Move that downloaded file to Documents/Euro Truck Simulator 2/mods folder.
- Move that downloaded file to Documents/American Truck Simulator/mods folder.
- That's it. No need extraction.
Please don't ask for archive password or corrupted file. That's a SCS file and locked with various programs. It prepared for gamers and all you will do only install the mod.