3ds Max Scene .max
Autodesk 3ds Max scenes, opened without the $1,945-a-year licence.
What an .max file holds
A .max file is 3ds Max’s own save format: an OLE2 compound document holding a class directory and a scene graph of nested binary chunks, with nothing about it published. Reading one here means walking that chunk tree directly: resolving every object against the class table, following the reference slots that connect a node to its transform, its geometry and its material, and pulling the vertex and face arrays out of Editable Poly and Editable Mesh objects. Standard, Physical, VRay, Corona and Arch & Design shaders come through with their PBR parameters, and Multi/Sub-Object assignments stay attached to the right faces. What does not come through is anything Max has to evaluate rather than store. Unfinished modifier stacks, NURBS, particle systems and procedural geometry are computed by the application, not stored in the file.
Commonly seen in: 3ds Max, architectural visualisation, game art, TurboSquid and other marketplaces.
| Data | Stored in MAX |
|---|---|
| Geometry | Yes |
| Materials and colour | Yes |
| Texture maps | Yes |
| Animation and rigs | No |
| Scene hierarchy | Yes |
| Read here | Yes |
| Written here | No |
Tested against a real file
The last sweep loaded MiniHouse.max from Autodesk Forge samples through the viewer on this site: 2,568 triangles across 27 meshes and 9 materials, in 2.7 seconds. Every format's result is on the test results page, run 2026-09-08.
Files to bring with it
Drop the texture images in alongside the .max and they get wired back onto the materials.
Which way is up
MAX is a Z-up format, which most of the rest of 3D is not. Files are read exactly as written and stood up for you in the viewer; the converter has a switch for it, so a model does not arrive in the next program lying on its side.
Convert MAX to another format
Every pairing has a page saying what survives the trip.
Other things to do with an .max file
Questions about MAX
How do I open an .max 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 MAX a good format to archive in?
MAX stores geometry, materials and colour, texture maps, scene hierarchy. 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 MAX 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.
Written up on the blog
Formats that hold the same things
Or go back to the full format reference.