The import/export ribbon group contains several useful commands for exporting 3-D.
Click on the 
button to export a STL file.
Click the 
will export the 3-D to a Wavefront OBJ file.
The 
will export the 3-D to a Collada file.
The 
button will create a POV RAY photo-realistic render file. If you have POV RAY installed then the POV RAY program will start and render your file in 3D.