XSIZETools is an addon for Softimage with full export and import of 3D .msh files for ZeroEngine (Star Wars Battlefront I and II). That includes geometry, materials with all ZeroEngine-specific flags, animations, collisions and simulated cloth.
In general, important updates will be gathered into a release, so choosing the latest release should give you the latest working features. Alternatively you can download the most recent commit directly with the "Download ZIP" button.
For more information on usage go to the XSIZETools homepage.
If you encounter bugs or have problems, feel free to post on the Gametoast forums (you might need to use a proxy from some countries) or send me a mail via Github.