File Extension Library

.PRF File Extension

  • Developer by: Microsoft
  • Category: Settings Files

What are .PRF files and how to open them?

Can't open .PRF file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .PRF file.

What is a .PRF file extension?

.PRF file extension is created by Microsoft. .PRF has been classified as Settings Files.

.PRF is Outlook Profile File

A PRF file is a user profile referenced by Microsoft Outlook that contains user information and preferences. It includes mail account settings, signatures, references to mail folders, and other settings.

When Outlook imports a PRF file, the user profile settings are immediately updated. PRF files can also be created using Microsoft's Office Resource Kit. The files can then be deployed to multiple systems using the Custom Installation Wizard (CIW) or other maintenance wizard included with the Office Resource Kit.

List of all softwares that can open the Outlook Profile File
Microsoft Outlook 2016
Microsoft Outlook 2016
File Type 2:

Director Preferences File

Developer by: Adobe Systems Category: Settings Files

Stores program settings for Adobe Director (formerly Macromedia Director); may also contain settings for Director Xtras, such as Media Lab's PhotoCaster.

The main Director settings file is named "Director.prf."

File Type 3:

Windows System File

Category: System Files

Contains settings and preferences used by the Windows operating system; may also be used by other applications to store program settings; should not be opened manually.

List of all softwares that can open the Windows System File
Microsoft Windows
File Type 4:

QuarkXPress Preferences File

Developer by: Quark Software Category: Settings Files

A PRF file is an application preferences file created by QuarkXPress, a page layout and publishing application. it contains saved preferences such as workspace settings and import and export options. PRF files can be used for transferring preferences between copies of QuarkXPress.

List of all softwares that can open the QuarkXPress Preferences File
File Type 5:

PICS Rules File

Developer by: W3C Category: Web Files Format: Text

Web profile created in the Platform for Internet Content Selection (PICS) format; contains filtering rules that allow or block access to certain URLs; used for implementing Internet safety policies, such as parental or teacher controls, which limit access to certain websites for students and children; also used for sharing PICS profiles with others.

The PICS format was proposed in the mid 1990s, and was adopted by some Web technologies. However, it is not widely used today and has been superseded by the Protocol for Web Description Resources (POWDER).

NOTE: PRF files were supported by some Web browsers and Web servers, such as Internet Explorer and Microsoft IIS.

List of all softwares that can open the PICS Rules File
Microsoft Internet Explorer
Microsoft IIS
File Type 6:

FileNet eForms Form Preferences File

Developer by: IBM Category: Settings Files

Contains user preferences for a form created with FileNet eForms electronic form design software; saved in the user's "Template Preferences" folder for each form accessed.

File Type 7:

Plot Station Plot Request File

Developer by: eQuorum Category: Data Files

Form that contains plot requests for eQuorum's Plot Station, a program for managing plotting jobs; saved in an ASCII text format and includes instructions and parameters for generating the plotted output; may be created by Plot Station Client and is processed by Plot Station Server.

File Type 8:

ClarisWorks Preference File

Developer by: Apple Category: Settings Files

Stores preferences for ClarisWorks, such as toolbar positioning and Welcome screen options; should be named "CLWORKS.PRF" and placed in the CLARIS directory; can be deleted to restore the program's default preferences.

NOTE: ClarisWorks is a Macintosh productivity suite developed by Apple that was later also made available for Windows computers. It was later replaced by AppleWorks, which was then discontinued.

How to fix problems with .PRF files

  1. You need to update the application that you normally use to open .PRF files. Only the latest version of the software supports the current .PRF file format
  2. You need to check the .PRF file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)