For Euro Truck Simulator 2 or American Truck Simulator, your save files are typically located in your Documents folder:
| Issue | Possible Cause | Solution | | :--- | :--- | :--- | | | The file isn't actually encrypted, or you're using the wrong tool. | Double-check the file format. Some .sii files are plain text and can be opened directly with Notepad. | | Online tool doesn't work | The service might be temporarily down or the file size too large. | Try a different online tool or use an offline alternative. | | Game crashes after replacing edited save | You introduced an invalid value or corrupted the file structure during editing. | Restore your original backup. Edit very carefully, changing only one small thing at a time to pinpoint the problem. | | "SII Decrypt only work at 50%" error | Partial decryption or unsupported file version. | This may happen with newer game versions. Make sure you're using the most up-to-date decryption tool available. | sii decrypt online
Uploading client data to unknown servers can lead to massive legal fines. For Euro Truck Simulator 2 or American Truck
In the world of SCS games, .sii files serve as the backbone for your profile data, game saves, and even localizations. They generally come in three forms: | | Online tool doesn't work | The
Game developers encrypt SII files for three primary reasons:
Open the .xml file in a secure local text editor like Notepad++, Visual Studio Code, or Sublime Text.