File > Export > Active as Subdiv

Saves one or more selected subdivision bodies to a .obj file or .tss T-Spline file.

Note:

You can also import subdivision bodies using the .fbx file format. See FBX export options and Transfer subdivision bodies between Alias and Autodesk Maya.

OBJ

Exports the selected subdivision bodies as an .obj file.Note:

When exchanging subdivision models between Alias and Maya using OBJ, be aware that:

TSS

Exports the selected subdivision bodies as a .tss T-Spline file.

The T-Spline file format maintains crease information and can be imported into other Autodesk products such as Dynamo, Fusion, and Speedform.