Click the "Select File" button above, and choose your XSI file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert XSI to another file type
To convert XSI 3D scenes to another format, you need Autodesk Softimage or other 3D software.
Convert a file to XSI
To convert other file formats to the "3D Scene File" file type, you need software like Autodesk Softimage or a similar tool.
About XSI files
The .XSI file extension primarily represents a Softimage 3D Scene file created by Autodesk Softimage. It stores complex 3D assets, including polygonal meshes, textures, lighting, skeletal rigging, and animation sequences. A secondary use for this extension is for generic XML-based data files, often acting as an XML Schema Instance.
Autodesk officially discontinued Softimage in 2015. This makes .XSI a highly problematic legacy format. Opening these files natively requires hunting down outdated, unsupported software or relying on old import plugins for Maya or 3ds Max. Because the binary structure is proprietary, your 3D assets are essentially trapped in a dead software ecosystem unless migrated. Even the alternative text-based version, known as dotXSI, requires specialized parsing that modern 3D software lacks.
To rescue these assets, you must convert .XSI files to modern, standardized formats. FBX is the best target if you need to preserve rigging and animation data. For static 3D models, converting to OBJ or GLTF is highly recommended.
This file format is exceptionally difficult to open or convert today. Often, only the original Autodesk Softimage application can properly read the proprietary rig and export the data without breaking the geometry. However, just drag and drop your file onto convert.guru to identify the format, view its internal structure, and convert it when possible. If our analysis detects the text-based dotXSI variant or a generic XML structure, we can safely extract the readable code and help you transition the data to a usable format.
Convert.Guru analyzes your XSI file, detects the exact format, and lets you read the text inside.
If you want to convert XSI file to OBJ, FBX, DAE, 3DS, MAX, BLEND, MA, MB, C4D, STL, PLY or WRL, you can use Autodesk Softimage or similar software from the "3D Scene and Animation Storage" category. In the File menu, look for Save As… or Export….
To convert DWG, DAE, X3D, IGES, WRL, JT, SKP, 3DS, 3DM, OBJ, STEP or FBX files to XSI, try Autodesk Softimage or another comparable tool in the "3D Scene and Animation Storage" category.
The XSI Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our XSI converter.