: If this is a mod file, move the extracted .scs file to your Documents/Euro Truck Simulator 2/mod folder, then enable it in the in-game Mod Manager .
: Version 1.45 is now an older build. The official game is currently on a much newer version (1.50+), which is updated automatically through the Steam Client. 🛠️ How to Use Split RAR Files Euro.Truck.Simulator.2.v1.45.4.0s.part4.rar
: Ensure you have every numbered part in the same directory. : If this is a mod file, move the extracted