The File Extensions Database


.M3URL File Extension

  • Developer by: Radionomy
  • Category: Settings, options, themes or skins Files

What is an .M3URL file?

.M3URL is SMIL MP3 playlist data

The m3url file extension is used for MP3 playlist files saved in SMIL (Synchronized Multimedia Integration Language) file format.

Supported by Winamp and some other media players, like Apple QuickTime.


How to open:

Use compatible tools to work with *.m3url files.

How to convert:

Probably can be converted to other formats.

How to solve problems with M3URL files

  • Associate the M3URL file extension with the correct application. On :
    Windows: Right click on any M3URL file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.M3URL files". Mac: Right click (or Ctrl-click) the M3URL file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .M3URL is SMIL MP3 playlist data. Because only the current version supports the latest M3URL file format. Search, therefore, e.g. on the Radionomy manufacturer website after an available .M3URL is SMIL MP3 playlist data update.
  • To make sure that your M3URL file is not corrupted or virus-infected, get the file again and scan it with antivirus software.