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

Details of extension .ofs

On this page, we're going to take a closer look at the .ofs file extension.

We'll explain what exactly a .ofs file format is and how you can use it. If you're interested in learning more details about this type of file, we'll show you where to find them. And if you ever need to convert .ofs files into different formats, we'll give you some tips on how to do that too.

Let's see the 2 file formats associated with this file extension!


  1. OptimFROG Dualstream Audio
  2. Microsoft Outlook Form Storage

We trust that our website will provide valuable information for you. If you have any questions, just ask!

OptimFROG Dualstream Audio

ofs file - OptimFROG Dualstream Audio
The OFS file belongs to the Audio category and works with OptimFROG, being used as an OptimFROG Dualstream Audio. OptimFROG is a proprietary lossless audio data compression codec developed by Florin Ghido. The developer is still actively supporting the OptimFROG, likely. Our data shows that OptimFROG uses 2 more file types.
Application: OptimFROG
Program name: -
Category: Audio files
Mime-type: application/octet-stream
Related extensions:
.ofg OptimFROG Lossless Audio
.la Lossless Audio Compressed Data
.ofr OptimFROG Lossless Audio
.flac Free Lossless Audio Codec File

Microsoft Outlook Form Storage

ofs file - Microsoft Outlook Form Storage
The OFS file is an Outlook Form Storage. A form provides an easy way to distribute and collect information.
Program name: -
Category: Document files
Mime-type: application/octet-stream
Related extensions:
.srs Microsoft Outlook Send/Receive Settings
.msg Microsoft Outlook E-Mail Message
.fav Microsoft Outlook Navigation Bar
.nlk Microsoft Outlook 2003 E-mail Cookies Data

The .ofs file extension might not only belong to a single type of file, there could be various kinds that use it. Keep in mind that files with the .ofs extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .ofs file extension wrong?

In our database, we came across the following similar extensions:

.os Altair FEKO POSTFEKO Currents Data
.ovs ARTA Overlay Data
.ofc Altair FEKO Paging Data
.lfs Samsung Android Phone LFS File
.ifs InfoSlips Package
.ors Psion OVAL Resource File

The .ofs extension is frequently misused

People sometimes confuse the .ofs filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

pfs (1), ors (1), ots (1), of (1), lfs (1), ifs (1), ogs (1), ovs (1), oes (1), kfs (1)

Having trouble opening a .ofs file?

If you want to open a .ofs file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .ofs association can trigger this error.

Windows can't open this file:

File: example.ofs

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 with 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 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android