File Extension Library

.MP21 File Extension

  • Developer by: AXMEDIS
  • Category: Video Files

What is an .MP21 file?

.MP21 file extension is created by AXMEDIS. .MP21 has been classified as Video Files.

.MP21 is AXMEDIS MPEG-21 Object

Media file saved in the AXMEDIS content distribution format; may contain multiple types of media, such as images, video, and audio data; may also include metadata, and DRM copy-protection information.

MP21 files are similar to .AXM files, but they used a more compressed format and can be opened more quickly. MP21 files can be created with AXMEDIS Editor and opened with AXMEDIS Player.

File Type 2 MPEG-21 Multimedia File
Category: Video Files

Media storage format developed by the Moving Picture Experts Group (MPEG); based on a "meta-box" format that contains audio or video data referred to as the "Digital Item;" also includes metadata that describes the media.

MPEG-21 files typically use the .M21 file extension.

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

How to Open .MP21 file on different platforms

Open .MP21 File on Windows

  • Right-click a .MP21
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .MP21 file and Select check box "Always use this app to open .MP21 files" Press "Ok"

Open .MP21 File on Mac

  • Right-click (or Ctrl + Left-click) the .MP21 file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .MP21 File on Linux

Right click on the .MP21 file, choose "Open with" and select a program from the list above

Open .MP21 File on iPhone

Select a file. If you don't see an application to open the .MP21 file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .MP21 File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .MP21 files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .MP21 files

  1. You need to update the application that you normally use to open .MP21 files. Only the latest version of the software supports the current .MP21 file format
  2. You need to check the .MP21 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)