Autodesk FBX Extensions SDK

It allows you to write extensions to the FBX plug-ins in a modular manner.

Autodesk FBX Extensions SDK allows developers to write extensions to the FBX plug-ins in a modular, plug-in like fashion.

The program enables developers to add or remove content in FBX files produced by FBX plug-ins (such as the FBX Maya plug-in) using callbacks.