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PREFS file extension

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

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

Table of Contents

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

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

✅ Configuration File

CNF is a general configuration file extension.
CFG format description not yet available
Application: -
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
CFG aliases:
cf, cnf, con, conf, config, pref, prefs, settings
CFG related links:
CFG related extensions:
Novell GroupWise Initialization File

Initialization File

Microsoft Windows Internet Settings File

Internet Sign-up Settings

Windows System Configuration

QuickTime Preferences File

Remote Desktop Connection Settings

ISP Configuration File

Runtime Configuration File

World of Warcraft Config

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

🚫 The .prefs file extension is often given incorrectly!

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

pref, prfs, refs

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Luppp Preferences Data
Resilient File System Image
Configuration File

🔴 Can't open a .prefs 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 .prefs 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 .prefs file extension, write to us!

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