Izware Nendo .ndo
Nendo’s box-modelling files. Wings 3D’s ancestor.
What an .ndo file holds
NDO is the format of Nendo, Izware’s minimal polygon modeller built around box modelling and subdivision. Its interface directly inspired Wings 3D, which is how its ideas outlived the product itself.
Commonly seen in: Nendo, Wings 3D lineage, archive geometry.
| Data | Stored in NDO |
|---|---|
| Geometry | Yes |
| Materials and colour | No |
| Texture maps | No |
| Animation and rigs | No |
| Scene hierarchy | No |
| Read here | Yes |
| Written here | No |
What the last sweep found
The only Nendo file published anywhere is Assimp's deliberately malformed one. The test results page has every format's outcome, run 2026-09-08.
Convert NDO to another format
Every pairing has a page saying what survives the trip.
Other things to do with an .ndo file
Questions about NDO
How do I open an .ndo file?
Drop it into the viewer on this site and it opens in the browser, with the scene tree, the materials and the mesh statistics. Nothing is uploaded. If you want it in another program instead, convert it to GLB, which almost everything reads.
Is NDO a good format to archive in?
NDO stores geometry. Anything outside that list will not be in the file at all, so archive the original alongside it if the surfacing or the rig matters.
Does converting NDO lose quality?
Geometry is copied vertex for vertex, so the shape does not degrade. What gets lost is whatever the target format has no field for: convert to STL and the materials go, convert to OBJ and the animation goes. The comparison table on each converter page says exactly which.
Formats that hold the same things
Or go back to the full format reference.