>> DUID file

DUID file format description

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

1 filename extension(s) found in our database.

.duid - DHCP Unique Identifiers Data

The DUID data files are related to ISC DHCP. DUID file is a DHCP Unique Identifiers Data. A DHCP server is a network server that automatically provides and assigns IP addresses, default gateways and other network parameters to client devices.

Data files
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DHCP Unique Identifiers Data related extensions:
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ERGO Format Data
XTreeGold for Dos Help Data
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Naturally, other applications may also use the .duid file extension. Even harmful programs can create .duid files. Be especially cautious with .duid files coming from an unknown source!

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

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

cuid, did, dud, udid, uid

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Unknown CUID File
Android Unique Device Identifier Data
IBM VoiceType User Data
Verity Server Index Data File
DirectUpdate Data

Operating systems 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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If you have useful information about the .duid file format, then write to us!

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