Autodesk FBX SDK
Autodesk. FBX (Filmbox) is a proprietary file format (. fbx) developed by Kaydara and owned by Autodesk since 2006. It is used to provide interoperability between digital content creation applications. FBX is also part of Autodesk Gameware, a series of video game middleware.
I've used Autodesk FBX SDK on 1 projects.