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# ExtAudioFileOpenURL(_:_:)

Opens an existing audio file for reading, and associates it with a new extended audio file object.

```
func ExtAudioFileOpenURL(_ inURL: CFURL, _ outExtAudioFile: UnsafeMutablePointer<ExtAudioFileRef?>) -> OSStatus
```

## Parameters

`inURL`

The audio file to read.

`outExtAudioFile`

On output, a newly allocated extended audio file object.

## Return Value

A result code.

## Discussion

---

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