>> DUN file

DUN file format description

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

1 filename extension(s) found in our database.

.dun - Dial Up Networking Exported Settings

The DUN configuration files are related to Microsoft Windows. DUN file is a Dial Up Networking Exported Settings.

Microsoft Windows
Configuration files
- / -
Dial Up Networking Exported Settings related extensions:
Microsoft XPS Document Settings
Windows Firewall Exported Rules
Microsoft Expression Encoder Preset
MemMaker Configuration Backup File
Microsoft ClickOnce Application Reference
Remote Access Phonebook Data

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

Can't open a .dun 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 .dun file extension is often given incorrectly!

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

din, dub, udn, dyn, duh, dkn, run, dum

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

DataEase Installation Script
Tuningwrench Compressed Audio
Alpha Five User Definition Data
ONETEP Density Kernel
LS-DYNA Document
C64 Fun Painter 2 Image

Operating systems

DataTypes.net currently supports the following operating systems:

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

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