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

Details of extension .m4u

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

Below, you can find answers to the following questions:

  • What is the .m4u file?
  • Which program can create the .m4u file?
  • Where can you find a description of the .m4u format?
  • What can convert .m4u files to a different format?
  • Which MIME-type is associated with the .m4u extension?
M4U Playlist File .m4u file icon

M4U Playlist File

M4U file is an M4U Playlist. The playlist file is a plain text file that contains the locations of one or more MPEG-4 video files that the mediaplayer should play.
Detailed description not available
Category: Video files
Application: QuickTime Player
Program name: QuickTimePlayer.exe
Mime-type: application/vnd.mpegurl
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Mpeg-4 Video Container
M3U Playlist File
Mpeg-4 Audio
Nokia Playlist
Multimedia Playlist
Session Description Protocol File
Windows Media Player Playlist
Synchronized Multimedia Integration Language
Google Video Pointer

Other types of files may also use the .m4u file extension. If you have helpful information about .m4u extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

M4 Macro File
IBM Voice Type Languages Newuser Data
MS-DOS Shell Menu Group Data
Match! User Database
MuPAD Source Code

The .m4u filename extension is often given incorrectly!

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

m4 (1), mtu (1), meu (1), mu (1), mru (1)

Can't open a .m4u file?

If you want to open a .m4u file on your computer, you just need to have the appropriate program installed. If the .m4u association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.m4u

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