File Extension Library

.M21 File Extension

  • Developer by: AXMEDIS
  • Category: Video Files

What are .M21 files and how to open them?

Can't open .M21 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 .M21 file.

What is a .M21 file extension?

.M21 file extension is created by AXMEDIS. .M21 has been classified as Video Files.

.M21 is AXMEDIS MPEG-21 File

Media file created with the AXMEDIS Editor; saved in a packaged content distribution format and may contain multiple types of media; may also include descriptive metadata, and DRM copy-protection information.

AXMEDIS MPEG-21 files may also be saved with an .MP21 file extension.

File Type 2 MPEG-21 File
Category: Video Files

Multimedia file format developed by the Moving Picture Experts Group (MPEG); uses a "meta-box" format that contains time-based media, such as audio and video data, as well as metadata that describes the contents of the file.

MPEG-21 may also include DRM information for copy-protection.

List of all softwares that can open the MPEG-21 File
Apple QuickTime Player
Apple QuickTime Player

How to fix problems with .M21 files

  1. You need to update the application that you normally use to open .M21 files. Only the latest version of the software supports the current .M21 file format
  2. You need to check the .M21 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)