«Number» file extensions

File extensions starting with a number

3df

3df

3D File
3dg

3dg

3D Grapher Document
3di

3di

3D IMPACT! Project
3dl

3dl

Sierra LandDesigner 3D Design
3dm

3dm

3dmf

3dmf

Deep Exploration 5 CE Quicktime 3D Metafile
3dp

3dp

Serif 3DPlus
3ds

3ds

Autodesk Design
3dstate

3dstate

WorldBuilderBinary Document
3dt

3dt

ESRI ArcGlobe Document
3dv

3dv

Viewer Document
3dx

3dx

Rhino 3-D Model
3dz

3dz

3D Screen Saver Project