All file extensions
.AAC File
What is it?
AAC (Advanced Audio Coding) is a compressed audio format that generally sounds better than MP3 at the same file size — it's the default format for Apple Music, YouTube, and many streaming services.
How do I open it?
Plays in iTunes/Apple Music, most phones, and any modern media player or browser.
Is it safe?
Yes, AAC only contains audio data.
Can I delete it?
Safe to delete once no longer needed.