The 3D ribbon in GraphWorX64 has its own File menu, which looks like this:
File menu in 3D GraphWorX64
Menu options are:
New - Deletes content in the current 3D view (clears the 3D scene).
Import and Export - See Importing and Exporting 3D Models, Clipart, and GraphWorX Art and Reducing Polygons in 3D Models for information.
Optimize Scene - Makes the 3D scene more efficient by eliminating empty groups, unnecessary tree levels, and removing all auxiliary geometry information.
Scene Info - Shows and hides scene information. See The X, Y, and Z Axis Legend in the 3D Viewport for more information.
Options - Specifies your preference for highlighted selected objects in 3D GraphWorX64. For more information, refer to Selection Highlight Settings.