DUF file format description

Many people share .duf files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .duf file can be edited, converted or printed with. On this page, we try to provide assistance for handling .duf files.

1 filename extension(s) found in our database.

.duf - DSON User File

The DUF data files are related to DAZ Studio. The DUF file is a DSON User File. The DAZ Scene Object Notation (DSON) file format is meant to be a lightweight format that captures the creation of a scene as a collection of assets with defined relationships. This format is not intended to be fully backward compatible with Poser content, although extensive efforts have been made to accommodate features of the Poser file format for features that are common to Poser and DAZ Studio.

DAZ Studio
Data files
- / -
DSON User File related extensions:
UpdateStar Data
Simrad SP70 Scanning Sonar Compressed Data
Java Key Store
3D Scanner Output
Fresh Download Partial Downloaded File
Microsoft Help 2 Combined Attribute Index

Naturally, other applications may also use the .duf file extension. Even harmful programs can create .duf files. Be especially cautious with .duf files coming from an unknown source!

Can't open a .duf file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .duf file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cuf, df, dfu, dif, djf, dkf, dub, duc, dud, dur, dut, dyf, euf, ruf, suf

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Lightscape Parameter File
Keysight PLTS Corrected Measurement Data
DriveCrypt Key File
Data Interchange Format
Windows NT Uniqueness Database File
Corel Paradox Table Filter

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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DataTypes.net >> DUF file