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# kAudioFileGlobalInfo_AllExtensions

A `CFArray` of `CFStrings` containing all recognized file extensions. You can use this array when creating an `NSOpenPanel` (declared in the AppKit’s `NSOpenPanel.h` header file).

```
var kAudioFileGlobalInfo_AllExtensions: AudioFilePropertyID { get }
```

## Discussion

If you access this property, your app is responsible for releasing the <doc://com.apple.documentation/documentation/CoreFoundation/CFArray> object.

When accessing this property’s value, you must set the `inSpecifier` parameter to `NULL`.

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