The Rhinoceros file format (.3DM) is useful for the exchange of NURBS geometry.
An exhibition, in the most general sense, is an organized presentation and display of a selection of items.In practice, exhibitions usually occur within museums, galleries and exhibition halls, and World's Fairs.xhibitions range from an extraordinarily large event such as a World's Fair exposition to small one-artist solo shows or a display of just one item. Curators are sometimes involved as the people who select the items in an exhibition.
World's fair. A world's fair, world fair, world exposition, or universal exposition (sometimes expo or Expo for short) is a large international exhibition designed to showcase achievements of nations. These exhibitions vary in character and are held in different parts of the world.