.XSI File

File extension xsi is mainly associated with the SOFTIMAGE|XSI, a high-end 3D graphics application for Microsoft Windows and Linux operating systems.

A .xsi file stores 3D model created in the SOFTIMAGE|XSI.

The SOFTIMAGE|XSI (SOFTIMAGE XSI or Autodesk Softimage) is discontinued product, replaced by 3ds Max and Maya in 2015.

This xsi file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

Files with xsi suffix can be mainly found as 3D model files created using SOFTIMAGE|XSI 3D modeling tool.

How to open:

Primarly Use SOFTIMAG XSI to open .xsi model files.

How to convert:

You can use programs like PolyTrans|CAD+DCC to convert .xsi files to some other 3D modeling formats.