Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .ofn

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

Below, you can find answers to the following questions:

  • What is the .ofn file?
  • Which program can create the .ofn file?
  • Where can you find a description of the .ofn format?
  • What can convert .ofn files to a different format?
  • Which MIME-type is associated with the .ofn extension?
Microsoft Office FileNew File .ofn file icon

Microsoft Office FileNew File

The OFN file is a Microsoft Office FileNew File. Microsoft Office is a suite of products that includes Microsoft Word, Excel, PowerPoint, and Outlook.
Detailed description not available
Category: Data files
Application: Microsoft Office
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Microsoft Office Language Interface Pack
Microsoft Office Proofingtool Data
Microsoft Office Theme EFXT Data

Other types of files may also use the .ofn file extension. If you have helpful information about .ofn extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

GCL Cross Referencing Data
COREX Manual Broad Phonetic Transcription Data
IGOR Pro Formatted Notebook File
KaraFun Karaoke File
Oberon 2 Module Source Code
Fluke Power Analyze Database
Oxygen Forensic Suite Backup
OptimFROG Dualstream Audio
TopLevel OfficeForms Blank Form

The .ofn filename extension is often given incorrectly!

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

pfn (1), onf (1), ofm (1), ofb (1), odn (1), obn (1), ifn (1), fn (1), otn (1), on (1), ofg (1), of (1), ocn (1), kfn (1), fon (1)

Can't open a .ofn file?

If you want to open a .ofn file on your computer, you just need to have the appropriate program installed. If the .ofn association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.ofn

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 from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android