Home : File Types : SII File

.SII File Extension

File Type18 Wheels of Steel: Haulin' Truck Definition File

DeveloperSCS Software
4.3 (51 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryGame Files


This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

What is a SII file?

Data file used by 18 Wheels of Steel: Haulin', a truck driving game; contains properties for a truck, such as the engine class; saved in a plain text format and often altered for creating custom truck configurations.

More Information

SII files can also contain a list of referenced truck files for the game. For example, the file truck_storage.sii contains the list of truck definition files and can be extended to add new trucks. It is saved in a plaint text format.

Open over 300 file formats with File Viewer Plus.
Programs that open SII files
Updated 3/1/2011

.SII Extension Information

This page contains information about the file extension SII and its known file associations. Our goal is to help you understand what a *.sii file is and how to open it.

The 18 Wheels of Steel: Haulin' Truck Definition file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and do not publish any information we have not verified.

If you would like to suggest any additions or updates to this page, please let us know.