该窗口正是您希望Android Studio打开文件的方式，因此您可以可视化/收听该文件.完全不影响android如何处理文件.

That window is just how you want Android studio to open the file so you can visualize/listen to the file. It does not affect how the file is handled by android at all.

由于Android Studio没有媒体播放器，建议您选择在关联的应用程序中打开匹配的文件 这将启动您的默认音乐播放器并播放mp3.

Since Android Studio does not have a media player, I suggest you to select Open matching files in associated application That will launch your default music player and play that mp3.

注意:请记住，res下的所有文件均应仅包含小写字母，数字和下划线.如果您的mp3名称错误，则条件无法编译.

Note: remember that all the files under res should ONLY contain lowercase letters, numbers and underscores. If you have your mp3 with the wrong name conditions will not compile.