FUZ file icon

FUZ File Extension

The Elder Scrolls V: Skyrim Voice Data Format

What is FUZ file?

Files with the extension .FUZ contain compressed audio data and graphic information that allow for the addition of voice and matching lip animation for characters in games. This format is utilized by Bethesda Softworks games, and it was first implemented in The Elder Scrolls V: Skyrim. It includes an XWM audio file and lip synchronization for mouth movements in the LIP file.

.FUZ Files - Speech and Lip Movement Synchronization

The newer version of audio files for characters in Bethesda Softworks games has enabled the combination of speech and lip animation movements, making characters look even more realistic. It is used, for example, in Fallout 4. The combination of files allows for faster processing. A .FUZ file consists of elements such as:

  • lip synchronization data in the LIP format,
  • sound in the RIFF container - an xWMA format similar to WAV,
  • file name corresponding to events in the game.

Voice and audio files in games are placed in dedicated archives.

Creating and Modifying .FUZ Files

The .FUZ file format shows that they are combined LIP and WMA files, therefore, their creation or edition does not require decryption or advanced algorithms. Files are available in the voices archive with the .BSA extension in the game directory. There are dedicated applications that facilitate the task, such as Skyrim Audio Converter or Unfuzer. By converting .FUZ files for a game, you can create a gameplay modification, for example, changing the language.

Programs which support FUZ file extension

The following listing features FUZ-compatible programs. Files with FUZ extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support FUZ file

Updated: 04/19/2024

How to open file with FUZ extension?

There can be multiple causes why you have problems with opening FUZ files on given system. Fortunately, most common problems with FUZ files can be solved without in-depth IT knowledge, and most importantly, in a matter of minutes. The list below will guide you through the process of addressing the encountered problem.

Step 1. Install Unfuzer software

Install software to open FUZ file Problems with opening and working with FUZ files are most probably having to do with no proper software compatible with FUZ files being present on your machine. This issue can be addressed by downloading and installing Unfuzer or different compatible program, such as The Elder Scrolls V: Skyrim. Above you will find a complete listing of programs that support FUZ files, classified according to system platforms for which they are available. The safest method of downloading Unfuzer installed is by going to developer’s website () and downloading the software using provided links.

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

Update software that support file extension FUZYou still cannot access FUZ files although Unfuzer is installed on your system? Make sure that the software is up to date. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. This can be one of the causes why FUZ files are not compatible with Unfuzer. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Unfuzer.

Step 3. Assign Unfuzer to FUZ files

After installing Unfuzer (the most recent version) make sure that it is set as the default application to open FUZ files. The next step should pose no problems. The procedure is straightforward and largely system-independent

Associate software with FUZ file on Windows

The procedure to change the default program in Windows

  • Clicking the FUZ with right mouse button will bring a menu from which you should select the Open with option
  • Click Choose another app and then select More apps option
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where Unfuzer is installed. Now all that is left is to confirm your choice by selecting Always use this app to open FUZ files and clicking OK.
Associate software with FUZ file on Mac

The procedure to change the default program in Mac OS

  • From the drop-down menu, accessed by clicking the file with FUZ extension, select Information
  • Find the Open with option – click the title if its hidden
  • Select Unfuzer and click Change for all...
  • Finally, a This change will be applied to all files with FUZ extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Check the FUZ for errors

If you followed the instructions form the previous steps yet the issue is still not solved, you should verify the FUZ file in question. It is probable that the file is corrupted and thus cannot be accessed.

Check FUZ file for viruses
1. The FUZ may be infected with malware – make sure to scan it with an antivirus tool.

Should it happed that the FUZ is infected with a virus, this may be that cause that prevents you from accessing it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the FUZ file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

Did you receive the FUZ 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. It could happen the the download process of file with FUZ extension was interrupted and the file data is defective. Download the file again from the same source.

3. Ensure that you have appropriate access rights

Sometimes in order to access files user need to have administrative privileges. Switch to an account that has required privileges and try opening the The Elder Scrolls V: Skyrim Voice Data Format file again.

4. Make sure that the system has sufficient resources to run Unfuzer

If the systems has insufficient resources to open FUZ files, try closing all currently running applications and try again.

5. Check if you have the latest updates to the operating system and drivers

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with The Elder Scrolls V: Skyrim Voice Data Format file. It is possible that one of the available system or driver updates may solve the problems with FUZ files affecting older versions of given software.

Do you want to help?

If you have additional information about the FUZ 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 FUZ file.

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