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  "title" : "Asset File Types"
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# Asset File Types

Uniform Type Identifiers for file formats supported by the Model I/O framework.

## Topics

### Constants

[`let kUTTypeAlembic: String`](/documentation/ModelIO/kUTTypeAlembic)

The Alembic file format (common extension `.abc`).

[`let kUTType3dObject: String`](/documentation/ModelIO/kUTType3dObject)

The Object file format (common extension `.obj`).

[`let kUTTypePolygon: String`](/documentation/ModelIO/kUTTypePolygon)

The Polygon file format (common extension `.ply`).

[`let kUTTypeStereolithography: String`](/documentation/ModelIO/kUTTypeStereolithography)

The Stereolithography file format (common extension `.stl`), also known as the Standard Tessellated Geometry format.

[`let kUTTypeUniversalSceneDescription: String`](/documentation/ModelIO/kUTTypeUniversalSceneDescription)

The Universal Scene Description file format (common extension `.usd`).


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