A daily updated filename extension database!

UDF file extension

The table below provides useful information about the .udf file extension. It answers questions such as:

  • What is the .udf file?
  • What program do I need to open a .udf file?
  • How can the .udf file be opened, edited or printed?
  • How can I convert .udf files to another format?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Windows NT Uniqueness Database File

UDF file is a Windows NT Uniqueness Database File. Unattended Setup with Windows NT supports the use of the Uniqueness Database File (UDF), which provides the ability to specify per-computer parameters. The UDF is an ASCII text file created using a simple text editor.
UDF format description not yet available
Category: Data files
Application: Notepad
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
UDF aliases:
UDF related links:
UDF related extensions:

Other types of files may also use the .udf file extension.

🚫 The .udf file extension is often given incorrectly!

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

df, duf, hdf, idf, jdf, kdf, ucf, ud, udb, udc, udd, udg, udr, udt, uef

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

OpenEdge ABL Data Definition
Paradox Table Filter
Lightscape Parameter File
UFED Physical Analyzer Data
Unidrv Font Format Data
Scream Universal File Format Data
Universal Communications Format File
Xilinx User Constraints File
BrainVoyager QX User Defined File Format

🔴 Can't open a .udf 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 cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .udf file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .udf file extension, write to us!

🔴 Rate our UDF page

Please help us by rating our UDF page on a 5-star rating system below. (1 star is poor, 5 star is excellent)

3 of 5 stars (19 votes)
Thanks for voting!
Invalid vote.
Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
This page is available in the following languages: Český Deutsch English Español Suomi Français Magyar Italiano 日本語 Nederlands Norsk Português Român Русский Svensk 中文