LXO Converter
FileFlip converts LXO files into 14 other formats entirely inside your browser, using Assimp compiled to WebAssembly. The LXO file is never uploaded to a server: it is read off your disk, converted on your own machine, and saved back by the browser. There is no file-size limit and no account to create.
How do I convert an LXO file?#
- Drop your LXO file onto the converter at the top of this page, or click it to pick one from your computer.
- Choose the format you want out of it. FileFlip downloads the engine that conversion needs, once, and your browser caches it.
- Conversion starts the moment you pick the format, and the result is yours to download. The work happens in this tab, so nothing is uploaded and nothing is queued.
Is it safe to convert LXO files online?#
Yes, because nothing is uploaded. FileFlip converts LXO files inside the browser tab you already have open, using WebAssembly builds of the same engines a desktop converter would install. Your file is read from your own disk into the page's memory, and no request carrying it is ever made.
You do not have to take that on trust. Open your browser's network panel, run a conversion, and you will see the engine come down and your file go nowhere. There is no upload, no server-side copy, no retention window, and no account tied to what you converted.
How FileFlip works lists every engine, its version and its download size, and shows how to check for yourself that nothing leaves your machine.
What happens to a LXO file#
FileFlip converts LXO into 14 formats with Assimp, all of it inside the browser tab. Each conversion below names the engine it uses, what it downloads, and exactly what that conversion keeps or drops.
| Category | 3D Models |
|---|---|
| File extension | .lxo |
| FileFlip support | Read only, so it is a source rather than a target |
| Conversions available | 14 |
| Engines | Assimp |
| Downloaded to your browser | 11.2 MB on the first conversion, then cached |
What is an LXO file?#
An LXO file is Foundry Modo's native scene, holding meshes, materials and Modo's item and mesh-operation hierarchy for a scene built or edited in the application.
Keep a scene as LXO while it's still being modelled or shaded inside Modo, to preserve its procedural mesh operations.
Convert LXO to FBX or glTF once the scene needs to move into an engine or another modeller, since Modo-specific data won't survive the trip either way.
The LXO file format reference covers the specification, the programs that open one, and what each conversion keeps or drops.
LXO questions people ask#
What is an LXO file?
An LXO file is a Modo scene, storing meshes, materials and Modo's own item and mesh-operation hierarchy. Modo was built by Luxology, a studio founded by former LightWave 3D engineers, which is why LXO shares some structural DNA with LWO.
Is Modo still available to open LXO files?
Foundry, which acquired Luxology in 2012, discontinued Modo in November 2024. Existing licenses still run the application, but there's no further development, which makes converting an LXO scene to a more current format worth doing before Modo becomes harder to run.
Can other 3D software open LXO files?
Only a small number of tools, since LXO was never published as an open interchange format. Libraries like Assimp include an LXO importer for basic geometry and materials, but Modo-specific features such as its procedural mesh operations aren't something another application can reconstruct.