.AT3 File Extension

File Type:
ATRAC3 Audio File

Having trouble opening .at3 extension? Don't panic! This page explains what at3 files are as well as suggests programs you may use to open at3 files. You can download these programs through this page.

What is an AT3 file?

At3 file extension has ATRAC3 Audio file type, developed by Sony, which is associated with the "audio files" category.

Commonly generated with Sony's Adaptive Transform Acoustic Coding 3 (ATRAC3) compression algorithm, the audio file is suitable for storage as well as playback on portable devices. Those include PlayStation Portable (PSP), MP3 players, etc. AT3 files are also quite similar to .AA3 and .OMG files.

To learn how you can open the given file, read the information below.

at3 file icon
File Type:
ATRAC3 Audio File
Audio Files

How to open AT3 file?

Double click the at3 file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .at3 extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the at3 extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the at3 file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open AT3 files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the at3 file as well. Download Universal File Viewer for your OS.

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