The 3d data is using the Autodesk FBX file format.
The 3d data is using the GLTF file format.
The 3d data is using the JT file format.
The 3d data is using the Wavefront OBJ file format.
The 3d data is using the tessellated STEP file format.
The 3d data is using the VRML file format.
The 3d data is using the VRML file format with a gzip compression.
The Export3DOutputFormat enumeration tells the available/desired 3D output format of a 3D export procedure called by DataSessionInterface.export3D.
See