Opening NAZ Files

The NAZ file type is primarily associated with UltraEdit.

NAZ	File extension: NAZ
	File type:	compressed archive

What is a NAZ file

NAZ files mostly belong to UltraEdit. A NAZ file is not a single standard format. It is used to store data in different ways. In some cases it is a game data file used by games and emulators for resources such as ROM images and other assets. In others it is an audio archive that uses the Ogg Vorbis compression scheme to store sound (often seen as a compressed sound file, for example in Nokia Asha devices). There are also instances where a NAZ file acts as a container for a compressed archive, such as a GPS track file.
Key uses include:

Game Data: Contains game resources or ROM data. Users may encounter these in contexts like Nintendo 64 ROM archives.

Audio Archive: Stores audio using the Vorbis codec. Applications that support Ogg Vorbis, like many media players, may open these files. For more on Vorbis support, see Xiph.org.

Compressed Archive / Data File: Some NAZ files hold various data types (for example, GPS track information) that require specialized extraction tools or mapping software.

If you are unsure of the file’s role, using a hex editor (for instance, UltraEdit) to inspect the header can reveal markers that indicate whether the content is audio, game-related, or data. Additional information is available on related pages such as this project or Nuance Dragon.
FilExt.com note: The functionality of a NAZ file depends on its internal format, so matching the file with the appropriate tool is key.

How to open a NAZ file

You need a suitable software like UltraEdit to open a NAZ file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your NAZ file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a NAZ file directly in the browser:. Just drag the file onto this browser window and drop it.

Online NAZ Text Viewer

Choose your .naz file to analyze

or drag and drop it here

Online File Viewer

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NAZ file format:

The file format, which is the arrangement and type of data in a file, determines which program can open the file. The file format can be determined based on the file extension and the signature (the first few characters of a file). If the file extension or signature does not match the file format, errors will occur when opening or editing the file. When there is a problem with a file, the first step to solving it is to determine the file format. In the following you will find our evaluation of the NAZ files:

The NAZ file extension is not common and includes different formats for the applicable programs. The file formats most commonly found in NAZ files are:

• 40% of all NAZ files start with the magic bytes VÂ%, which are always the first bytes of this file format. The content consists of binary data as well as text and words. The file size is in the range of 470 MB to 470 MB. This file type was primarily in use more than 10 years ago. The keywords /data/Sounds/PedestrianSpeaks/aahh_ are typical for these files. A usual file name is blocks.naz.
• 15% of all NAZ files have the same signature 0E 7A DD 49 AC 0F 7B DE 4A B6 19 7C DF 4B AE 23. These files contain neither text nor words, but only data. The average file size is 230 MB with most files being between 230 MB and 230 MB in size. The following keywords are characteristic: OggS, vorbis and xOggS. A common filename is sounds.naz.

All other NAZ files (45%) have no consistent format, frequently e.g. xOggS, NAZD and BxBIKi. You can get all the details of your NAZ file by dragging it onto this page or by clicking the button "Choose your .naz file to analyze" above.