What is a .XSI File And How To Open It – Autodesk (Visual Guide)

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While downloading files, you might have downloaded a file with the .xsi extension. It is important to know how to open this file – in order to be able to work with it. That’s why we have made this article! You will learn how to open the .xsi file extension on various systems, what it is and how to work with it.

What is a .XSI file?

The file extension .XSI comes from Softimage XSI 3D Image. The development of this file was done by Autodesk. This 3D images related file is in binary format.

What to know

There is currently 1 software that can open the .xsi file on 1 platform.

How to open a .XSI file?

In this part of the article we will show you how to open the .XSI file on various operating systems.

How to open a .XSI file on Windows (7, 8, 10)

We have written below an easy-to-understand guide on how to open the .xsi file on Windows in 4 easy steps.

1. The first step is to download the Okino Computer Graphics PolyTrans software. You will be using this software in order to open the file. Other software that can be used in opening this file is: Okino Computer Graphics PolyTrans.

Step 2

Step 2: Locating your .XSI file

2. In the second step you need to locate the downloaded file. If you don’t remember where you have downloaded your file to, you should check your /download/ folder as it usually gets automatically saved there.

Step 3

Step 3: Choose “Open with”

3. In the third step right click on your file and choose “Open with”.

Step 4

Step 4: Choose the software and click ok

4. After choosing the “Open with” option, you will have an option to choose the Okino Computer Graphics PolyTrans software you have downloaded. Choose your software and click on “OK”. Congratulations! You have opened your file on Windows.

Still cannot open the .XSI file?

If you cannot open the .XSI file, it is entirely possible that you are trying to open the wrong file. The .XSI file extension is similar to other file extensions such as: .xsiaddon – Autodesk, .xsig – W3C and ETSI, .xsl – XML Style Sheet, .xslic – Citrix, .xslt – XSL Transformation File. You might be trying to open one of them. Please recheck the file extension again.


In this article you have learned how to open the .XSI file with the Okino Computer Graphics PolyTrans program on Windows.