SII files (SCS Information Interface) are the primary data storage format used by SCS Software games such as Euro Truck Simulator 2, American Truck Simulator, Scania Truck Driving Simulator, and several other truck simulation titles. These files contain everything from game save data and profile details to configuration settings, localization text, and mod definitions.
— A good indicator: "If your game.sii is about 200kb, then the resulting decrypted file should be about 3mb. That's a good way to tell the difference". sii decrypt scs forum
Start by joining the official SCS Software forums. Here, you can find threads related to modding, SII files, and game development. SII files (SCS Information Interface) are the primary
On the SCS Forum, threads dedicated to SII Decrypt act as a vital repository. Over the last decade, various community members have updated the tool to maintain compatibility as SCS Software updated its save format structure (such as the transition across different save versions and profile formats). How SII Decrypt Works That's a good way to tell the difference"
The most famous and enduring of these utilities is simply known as (often distributed as SII_Decrypt.exe ).
Change the "0" to "2" (this forces the game to save in a format text-decrypters can read).
Decrypted SII files allow direct editing of in-game currency. You can adjust company finances, personal money, and bank balances. The decrypted file structure makes these values clearly visible for modification.