Formats.
What Viquis 3D opens, what it saves and what it doesn't open — and why.
Opens
| Format | Extensions | Type |
|---|---|---|
| STEP | .step .stp | CAD solid |
| IGES | .iges .igs | CAD solid |
| BREP | .brep | CAD solid |
| STL | .stl | mesh |
| 3MF | .3mf | mesh |
| OBJ | .obj | mesh |
| glTF | .gltf | mesh |
| GLB | .glb | mesh |
| PLY | .ply | mesh |
| DAE | .dae | mesh |
| AMF | .amf | mesh |
| VRML | .wrl .vrml | mesh |
| VTK | .vtk .vtp | mesh |
| OFF | .off | mesh |
| PCD | .pcd | point cloud |
| XYZ | .xyz | point cloud |
| G-code | .gcode .gco | print toolpath |
Saves and converts (Pro)
STL, OBJ, GLB, PLY and 3MF. For example STEP → STL for printing, or STEP → GLB to show on the web. Also PDF (technical drawing and quote), CSV for Excel, PNG, MP4 and an HTML file to send to your client.
Doesn't open
SolidWorks, CATIA, Inventor, NX, Creo, Parasolid, JT, SketchUp, Rhino 3DM, Revit, DWG/DXF, FBX and 3DS. These are closed formats: reading them legally requires vendor licences. Export them to STEP, glTF or STL in the program they were made in.
How big a file it handles
Estimates for a computer with 16 GB of memory (with 8 GB, expect about half). The absolute maximum is 1.5 GB.
| Format | Practical maximum |
|---|---|
| STEP, IGES, BREP | about 60 MB comfortably; above 300 MB the app warns you |
| Binary STL, GLB, 3MF, binary PLY | 500 MB to 1 GB (10 to 20 million triangles) |
| OBJ, text STL, DAE, VRML, G-code | 300 to 500 MB |
| Point clouds (PCD, XYZ) | about 500 MB |
For very large files, export as GLB, 3MF or binary STL rather than STEP or OBJ.