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# typeFromFileExtension:

Returns the document type associated with files having extension `fileExtensionOrHFSFileType`.

```
- (NSString *) typeFromFileExtension:(NSString *) fileNameExtensionOrHFSFileType;
```

## Discussion

The  `fileExtensionOrHFSFileType` parameter may also be an encoded HFS file type, as well as a filename extension.

This method only works when passed a file name extension used in a `CFBundleDocumentTypes` entry that does not have an `LSItemContentTypes` subentry.

---

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