Export objects to a .3DS file at runtime

Hi, Does anyone know if it's possible to export objects into a .3DS file at runtime (probably) and how ? Is there a library to create such a binary file, or do I have to learn the structure of the 3DS format ? I'm not talking about a .max, .obj or .fbx mind you, but specifically a .3ds. (edit) Documentation : - http://www.xbdev.net/3dformats/3ds/3ds.php - http://www.morrowland.no/apron/article/general/autodesk_3ds/index.php