«Number» file extensions
File extensions starting with a number
3D File
3D Grapher Document
3D IMPACT! Project
Sierra LandDesigner 3D Design
Deep Exploration 5 CE Quicktime 3D Metafile
Serif 3DPlus
Autodesk Design
WorldBuilderBinary Document
ESRI ArcGlobe Document
Viewer Document
Rhino 3-D Model
3D Screen Saver Project