# FileStpWriteOptions.StepSchema enum

Namespace: [Rhino.FileIO](https://developer.rhino3d.com/api/rhinocommon/namespace/rhino.fileio.md) · Assembly: [RhinoCommon](https://developer.rhino3d.com/api/rhinocommon/assembly/rhinocommon.md) · Since v8.0

```cs
public enum FileStpWriteOptions.StepSchema
```

Step schema.

## Values

| Name | Value | Description |
| --- | --- | --- |
| SF_203 | 0 |  |
| SF_214 | 1 |  |
| SF_214_CC2 | 2 |  |
| SF_242 | 3 |  |