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AU file format description

AU file format

Many people share AU files but don't explain how to use them. This can make it hard to know which software can open, change, or print these files. We made this page to help you understand how to work with AU files. Here, you'll find info on software that works with these files. This includes simple programs for opening and converting them. We also share simple steps for editing these files and changing them into different formats. Whether you need to open, edit, or change a AU file, our website has all the tips and tools you'll need to do it easily.

2 filename extension(s) found in our database:

AU - Sun Audio File

The AU audio files are related to Windows Media Player. The AU file is a Sun Audio file. This sound file format was created by Sun Microsystems.

Application:Windows Media Player
Category:Audio files
Mime-type:audio/x-au
Magic:- / -
Aliases:-

Sun Audio File related extensions:

  • ptnoise PxTone PtNoise Audio File
  • dvw Dektron Digital Voice Recorder Voice
  • mgb Paragon 5 Gameboy Tracker Audio
  • sdc BigPond Music Song

AU - Audacity Audio Data

The AU audio files are related to Audacity. The AU file is an Audacity Audio Data. Audacity is a free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems.

Application:Audacity
Category:Audio files
Mime-type:application/octet-stream
Magic:- / -
Aliases:-

Audacity Audio Data related extensions:

  • auf Audacity Block Data
  • aup Audacity Project
  • aup3 Audacity v3 Project
  • aup3-shm Audacity v3 Temporary Work Data

Did someone accidentally misspell the AU filename?

The AU filename extension may be misspelled. We compiled a list of similar file extensions to help you find errors.

Filename extensions similar to AU:

Windows can't open your AU file?

When you try to open a file by double-clicking it, Windows looks at the file's name to figure out what to do. If Windows doesn't know the file type, it'll ask you to choose an app to open this AU file.

To set the AU file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. In the Default apps section, you will find various categories. They include Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate. For example, choose Photos for image files, or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the app you want is not listed, click on More apps to see more options. Or, click on Look for an app in the Microsoft Store to search for apps.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set AU file association. Many apps can open files. They don't need a specific file association to be set.

Handle AU files with care

Exercise caution when handling AU files from unknown sources. Files from certain sources can threaten your computer's security. They might contain malware, viruses, or harmful software. To minimize risks, avoid downloading or opening unfamiliar AU files. Use trusted antivirus software to scan files from unknown sources before opening.

If you find the information on this AU page useful, please feel free to link to this page.

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