---
title: kMEFormatReaderSidecarFileNameExtensionArrayKey
framework: MediaExtension
role: symbol
role_heading: Global Variable
platforms: [Mac Catalyst 18.0+, macOS 15.0+]
path: mediaextension/kmeformatreadersidecarfilenameextensionarraykey
---

# kMEFormatReaderSidecarFileNameExtensionArrayKey

## Declaration

```swift
var kMEFormatReaderSidecarFileNameExtensionArrayKey: String { get }
```