# GH_ExternalFileType enum

Namespace: [Grasshopper.Kernel](https://developer.rhino3d.com/api/gh1/namespace/grasshopper.kernel.md) · Assembly: [Grasshopper](https://developer.rhino3d.com/api/gh1/assembly/grasshopper.md)

```cs
public enum GH_ExternalFileType
```

Enumerates the possible external files that Grasshopper is interested in.

## Values

| Name | Value | Description |
| --- | --- | --- |
| Unknown | 0 | Unknown (invalid) file type. |
| Assembly | 1 | File represents a GHA assembly. |
| UserObject | 2 | File represents a GHUSER archive. |
| Cluster | 3 | File represents a GHCLUSTER archive. |