.XSI File Extension
File TypeSoftimage XSI 3D Image
What is an XSI file?
Three-dimensional image created by Softimage, a 3D character animation and effects program used in video games and film productions; stores the mesh (geometry), textures, shades, and other model data for a character; used for animating characters within 3D scenes.
Softimage was previously developed by Softimage, Co. as Softimage|XSI. The software is now owned by Autodesk.