A daily updated filename extension database!

Details of the .aa3 file extension

The table below provides useful information about the .aa3 file extension. It answers questions such as:

  • What is the .aa3 file?
  • What program do I need to open a .aa3 file?
  • How can the .aa3 file be opened, edited or printed?
  • How can I convert .aa3 files to another format?
  • Where can I find the specifications for .aa3?
  • Which MIME-type is associated with the .aa3 extension?

We hope you find this page helpful and a valuable resource!

0 extension(s) and 1 alias(es) found in database

.atrac file extension details

Sony ATRAC3 Compressed Audio

Sony ATRAC3 Compressed Audio .atrac file icon
ATRAC file is a Sony ATRAC3 Compressed Audio. Adaptive Transform Acoustic Coding (ATRAC) is a family of proprietary audio compression algorithms developed by Sony.
Category: Audio files
Application: Windows Media Player
Mime-type: audio/x-oma
Magic number: -
Magic string: -
Sample: -
ATRAC aliases:
aa3, at3, atp, atrac3, oma, omg
ATRAC related links:
ATRAC related extensions:
Audio Interchange File

CD Audio Track

MIDI Music

MPEG Audio Layer 3 File

Real Audio Sound

Macintosh Sound Resource

Amiga 8SVX Sound

Creative Labs Sound Blaster Sound

Windows Waveform Sound

AC-3 Compressed Audio

Other types of files may also use the .aa3 file extension.

.aa3 file extension error

The .aa3 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

aae, aa, aaw, ax3, aar

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Apple iOS8 Sidecar File
Audible Audiobook
Android Library Project.
Lavasoft Ad-Aware 2007 Configuration
Amazon Kindle Format 8 Ebook
Amazon Kindle Format 8 Ebook Metadata
open .aa3 file

Can't open a .aa3 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .aa3 file association, check the FAQ.

.aa3 file extension

Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .aa3 file extension, write to us!

Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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