Is there a 3D format that supports instanced components? [closed]

I am looking for a 3D file format that supports instanced components/objects. That is, there is one geometry declaration and then it is instanced in numerous places. Open formats are very much preferred.

• There is OpenFlight. (.flt) Jan 19, 2016 at 3:55

The <instance_geometry> element instantiates an object described by a <geometry> element.