Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .si

1 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .si file?
  • Which program can create the .si file?
  • Where can you find a description of the .si format?
  • What can convert .si files to a different format?
  • Which MIME-type is associated with the .si extension?
AutoDesk Softimage Document .si file icon

AutoDesk Softimage Document

SI file is an AutoDesk Softimage Document. Autodesk Softimage is a 3D computer graphics application owned by Autodesk for producing 3D computer graphics, 3D modeling, and computer animation.
Detailed description not available
Category: Graphic files
Application: AutoDesk Softimage
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
AutoDesk Softimage Workgroup Data
AutoDesk Softimage Export Model
AutoDesk Softimage Scene
AutoDesk Softimage ZPIC Image
AutoDesk Softimage Data
Autodesk Softimage Binary Actions Data
Autodesk Softimage Expression Text Data
Autodesk Softimage FCurves RAW Data
Autodesk Softimage Object Render Archive

Other types of files may also use the .si file extension. If you have helpful information about .si extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

iBlaze Case Information File
Electric Image
Modula-3 Intermediate Assembly File
Rsyslog Queue Info
Google Science Journal Data
Safari History Index
RenderMan Shader Source
Unix Shared Library
SUwin Project

The .si filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

xi (1), su (1), sl (1), sj (1), is (1), ci (1), zi (1), wi (1), so (1), sk (1), qi (1), ei (1)

Can't open a .si file?

If you want to open a .si file on your computer, you just need to have the appropriate program installed. If the .si association isn't set correctly, you may receive the following error message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android