XSI File Extension

Programs that support XSI files

• Windows ⁴

Windows

• SOFTIMAGE XSI
• SketchUp
• AccuTrans 3D
• PolyTrans

How to open a XSI file?

If you’re having difficulty opening a XSI file, it is often due to not having the correct software. To solve the problem, choose a compatible program from the list. Then follow the link to the official developer site, download the software, and install it on your device.

SOFTIMAGE XSI, SketchUp and AccuTrans 3D are recognized as the most popular software solutions for dealing with XSI files. If you wish to install the latest release of SOFTIMAGE XSI, visit the official Autodesk portal and download the edition that works on any operating system.

After installation, your operating system should automatically open XSI files with SOFTIMAGE XSI.

Set SOFTIMAGE XSI as the default XSI handler

Setting a default program by file type in Windows

1. Right-click your XSI file, then navigate to the "Open With" option and click "Choose Another Application" to continue;
2. In the pop-up window, find and select the SOFTIMAGE XSI application from the available options;
3. Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening XSI files.

Choose an app to open a file on Mac

1. Right click or use Control + left click on the desired XSI file to launch the file options menu;
2. Select "Open in application" and click "Other";
3. Next, at the bottom of the window, you will see the "Enable" menu, in which "Recommended Programs" is selected by default;
4. In this menu, select "All Programs", then find SOFTIMAGE XSI and check the box next to "Always open in the application."

How to edit a XSI file?

Editing XSI files requires installing professional software that lets you open and edit 3d image files. Online editors have more limitations compared to dedicated Softimage XSI 3D Image programs.

Best XSI editors in 2026

Based on these criteria, we have prepared a list of available XSI editors.

Convert to and from XSI

If a XSI file is cumbersome, converting it to formats such as FBX, MA or other supported types can make it easier to manage.

Converting a XSI file may not fully retain all functionality, but it is generally possible to return it to the original format.

Several applications, including PolyTrans, can convert XSI files offline without quality loss.

Convert XSI to other file formats

• XSI to FBX
• XSI to MA

Converting Files to XSI Format

• OBJ to XSI

Effective solutions for XSI file problems

There are some common issues with XSI files that can be resolved easily by making minor adjustments to your software. Below, you’ll find these issues along with practical troubleshooting tips.