What is a SII file?
The .SII file extension is primarily a SCS Software Game Data file. SCS Software uses this format for game data definition files and game save files in popular simulator games like Euro Truck Simulator 2 and American Truck Simulator. These files store game settings, player profiles, vehicle configurations, mod definitions, and map data.
How to open SII files?
Many .SII files contain simple plain text. You can open and read these text-based files using standard text editors like Notepad++ or Visual Studio Code. However, the game engine compiles or encodes certain .SII files, such as player save files, to save disk space and improve loading times. To view and edit these encoded save files, players often use specialized community tools like the command-line SII Decrypt utility to convert the file back into a readable text format.
Inspect files with viewer.online
viewer.online/sii can analyze .SII files to identify the exact format and creator software. It allows you to inspect the file structure, extract readable text, and check whether an online preview is available. Because a .SII file can be either readable plain text or unreadable encoded data, we recommend using viewer.online/sii to identify the actual format of your file immediately.
Summary
In summary, viewer.online/sii is useful for identifying, inspecting, and understanding .SII files without installing software or dealing with compatibility problems. If you need to modify your extracted data, you can convert your files to sensible target formats like .TXT or .JSON on convert.guru.