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.SII File Extension

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File Type18 Wheels of Steel: Haulin' Truck Definition File

DeveloperSCS Software
4.2 (50 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.


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.

Programs that open SII files
Updated 3/1/2011

FileInfo - The File Extensions Database

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

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