.XSIADDON File

The xsiaddon file extension is associated with SOFTIMAGE XSI, an advanced 3D animation software for games, film and television, developed by Avid Technology, Inc. As the extension says, it is an addon file format.

Files with xsiaddon extension are used by SOFTIMAGE XSI software as an addon files.

How to open:

Use Autodesk Softimage 2015 to open files with xsiaddon extension.

How to convert:

It is unconvertable file extension.