UAX File Extension

UAX file icon
Unreal Audio Package
  • Developer
    Epic Games
  • Category
  • Popularity
    3.2 (4 votes)

What is UAX file?

Full format name of files that use UAX extension is Unreal Audio Package. Unreal Audio Package specification was created by Epic Games. Files with UAX extension may be used by programs distributed for Windows platform. UAX file format, along with 703 other file formats, belongs to the Audio Files category. Users are advised to use UnrealEd software for managing UAX files, although 5 other programs can also handle this type of file. UnrealEd software was developed by Epic Games, Inc., and on its official website you may find more information about UAX files or the UnrealEd software program.

Programs which support UAX file extension

The following listing features UAX-compatible programs. UAX files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support UAX file

How to open file with UAX extension?

Being unable to open files with UAX extension can be have various origins. Fortunately, most common problems with UAX files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Install UnrealEd software

Problems with opening and working with UAX files are most probably having to do with no proper software compatible with UAX files being present on your machine. This issue can be addressed by downloading and installing UnrealEd or different compatible program, such as Awave Studio, UnPACKer, Unreal Tournament. Above you will find a complete listing of programs that support UAX files, classified according to system platforms for which they are available. If you want to download UnrealEd installer in the most secured manner, we suggest you visit Epic Games, Inc. website and download from their official repositories.

Step 2. Check the version of UnrealEd and update if needed

You still cannot access UAX files although UnrealEd is installed on your system? Make sure that the software is up to date. Software developers may implement support for more modern file formats in updated versions of their products. The reason that UnrealEd cannot handle files with UAX may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using UnrealEd.

Step 3. Associate Unreal Audio Package files with UnrealEd

After installing UnrealEd (the most recent version) make sure that it is set as the default application to open UAX files. The process of associating file formats with default application may differ in details depending on platform, but the basic procedure is very similar.

Change the default application in Windows

  • Right-click the UAX file and choose Open with option
  • Click Choose another app and then select More apps option
  • Finally select Look for another app on this PC, point to the folder where UnrealEd is installed, check the Always use this app to open UAX files box and conform your selection by clicking OK button

Change the default application in Mac OS

  • By clicking right mouse button on the selected UAX file open the file menu and choose Information
  • Find the Open with option – click the title if its hidden
  • Select UnrealEd and click Change for all...
  • Finally, a This change will be applied to all files with UAX extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the UAX file is complete and free of errors

Should the problem still occur after following steps 1-3, check if the UAX file is valid. It is probable that the file is corrupted and thus cannot be accessed.

1. Check the UAX file for viruses or malware

If the UAX is indeed infected, it is possible that the malware is blocking it from opening. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the UAX file is indeed infected follow the instructions below.

2. Ensure the file with UAX extension is complete and error-free

Did you receive the UAX file in question from a different person? Ask him/her to send it one more time. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. When downloading the file with UAX extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Ensure that you have appropriate access rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open UnrealEd

If the system is under havy load, it may not be able to handle the program that you use to open files with UAX extension. In this case close the other applications.

5. Verify that your operating system and drivers are up to date

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Unreal Audio Package file. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle UAX files.

Do you want to help?

If you have additional information about the UAX file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on UAX file.

Top File Extensions
Show more
File Extension of the day
partial icon


Internet Explorer Partially Downloaded Format

PARTIAL file extension is used for partially downloaded files by Internet Explorer 9 (and later) and Microsoft Edge web browsers. As the name sugge...