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Details of extension .f4f

On this page, we're going to take a closer look at the .f4f file extension, which is related to Flash MP4 Video Fragment. We'll explain what exactly a .f4f fileformat 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 .f4f files into different formats, we'll give you some tips on how to do that too. Let's see the file format associated with this file extension!


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f4f file - Flash MP4 Video Fragment

Flash MP4 Video Fragment

The F4F file is a Flash MP4 Video Fragment. The F4V format is based on the format specified by ISO/IEC 14496-12: ISO base media file format. Starting with SWF files published for Flash Player 9 Update 3 (9,0,115,0), Flash Player has been able to play F4V files.
Category: Video files
Application: Adobe Flash Player
Program name: -
Mime-type: video/mp4
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
.mp4 Mpeg-4 Video Container
.f4m Flash Media Manifest File
.f4x Flash MP4 Video Index
.bootstrap Flash MP4 Video Bootstrap

The .f4f 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 .f4f extension may contain various content types. If you have helpful information about this extension, write to us!

Could someone have spelled the .f4f file extension wrong?

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

.fef Steuer 2001 FEF Data
.frf Ginga X-Ray First Reduction Data
.f4 Fortran IV Source Code
.f4g Gigabyte BIOS Update
.c4f Clonk Game Round Data
.f4v Flash MP4 Video

The .f4f extension is frequently misused

People sometimes confuse the .f4f filename extension. Based on the searches on our site, here are the most common misspellings from the past year.

ff (1), ftf (1), f4 (1), f4v (1), c4f (1), fef (1), f4b (1), frf (1), b4f (1)

Having trouble opening a .f4f file?

If you want to open a .f4f file on your computer, you just need to have the appropriate program installed. Incorrect settings for the .f4f association can trigger this error.

Windows can't open this file:

File: example.f4f

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