Opening a NAF File

The NAF file type is primarily associated with NAF Browser.

NAF	File extension: NAF
	File type:	container

What is a NAF file?

NAF files mostly belong to NAF Browser. NAF files come in different forms and are used in separate fields.

Natural Language Annotation: Some NAF files use an XML structure to hold annotated text data. They store linguistic annotations for NLP projects and work with tools like NAF Browser. More details are available at Newsreader Project.

3D Animation Data: Other NAF files carry information for 3D animations. They might include full scene data or skeletal animation data and are processed with software such as 3D Studio Max or similar applications.

Network Audio: In some cases, NAF files are used for digital audio recordings. They follow schemes similar to RIFF and are employed in recording or game audio environments.

Game Files: A few NAF files serve as containers for game assets, such as audio tracks or animation details, seen in titles like Disney's Hercules Action Game.

FilExt.com note: Different uses mean that the same extension does not guarantee a single internal structure. Choose the appropriate viewer or editor based on the file's origin.

How to open a NAF file

You need a suitable software like NAF Browser to open a NAF 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 NAF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a NAF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online NAF Text Viewer

Choose your .naf file to analyze

or drag and drop it here

Online File Viewer

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NAF file format:

To find out what program is needed to open NAF files, you need to determine the file format. Often, the file format can be deduced from the file extension or the initial bytes (called the signature). If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. So a detailed analysis of a file is vital in order to determine the format and the associated program. Our analysis of the NAF files produces the following result:

NAF is not a common file extension and includes a lot of different file formats for different programs. The two most popular formats are as follows:

• 15% of all NAF files are based on the popular XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. These files are text files, so they contain words and text. NAF files are between 310 bytes and 33 KB in size. Several words can almost always be found in the files, e.g. <?xml version="1.0" encoding="UTF-8"?>, <nafHeader>, <NAF xml:lang="en" version="v3">, public publicId, http, uri and fileDesc title. A usual file name is wes2015.d001.naf.
• 10% of all NAF files start with the bytes B3DAM crucial for this file format. The contents of these files cannot be read by a human; only a computer program can interpret the data. The files are on average 73 KB in size and range from 73 KB to 140 KB. Certain words are almost always found in the files, such as B3DAM, Root, SX?x and l?^>+0y?. A usual file name is workerwalk.naf.

All other NAF files (75%) have no consistent format, often e.g. RIFF, BTRF, VERF and KPH. Files like these are sometimes linked to biped, myexport, abhuva, activation, statements, madijono, booking, attack, export, return or djoko. You can get all the details of your NAF file by dragging it onto this page or by clicking the button "Choose your .naf file to analyze" above.