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Navigation: Home > AT3 file

Informations about the AT3 filename extension and the file formats associated with it

We collected the information you should know about the .at3 filename on this page. If you were sent a(n) .at3 file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.atrac - Sony ATRAC3 Compressed Audio

The ATRAC file is a Audio file, which is connected to the Sony ATRAC3 Compressed Audio according to our registry. With the adequate settings, the Sony ATRAC3 Compressed Audio (.atrac) files can be opened or converted with the help of Windows Media Player.

Format description:
ATRAC format
Windows Media Player
Magic string:
- / -
aa3, at3, atp, atrac3, oma, omg
Related links:
Related extensions:
DVD Audio Object
Advanced Systems Format Media
Advanced Stream Redirector
Sony ATRAC3 Compressed Audio
Sun Audio File
Microsoft Video for Windows Movie

Important! Programs other than the ones listed above may also use the .at3 file extension. Even harmful programs can create files with the .at3 extension to store data in them. Always be careful with .at3 files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .at3 file can’t be opened on your computer?

If the program necessary for opening the .at3 file is installed properly on your computer, then the quickest and simplest way to open the .at3 file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .at3 file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .at3 extension

The .at3 filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .at3 files.

af3, atw, ate, t3, atr

Maybe you’re not even looking for the .at3 file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .at3 extension. It’s possible that the one you’re looking for is among them.

Micrografx ABC FlowCharter 3 Document
TADS 3 Compiled Game
Microsoft Accounting Accountants Transfer
SIO2PC Atari Disk Image
Lightscape Material File
PhysioBank Annotation File

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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