The File Extensions Database

.QMX File Extension

  • Category: Digital video and movie Files

What is an .QMX file?

.QMX is Quantum Streaming video

The qmx file extension is associated with the Quantum Streaming a multimedia Active X player for Microsoft Windows Internet Explorer.

The qmx file stores video data.

Some security webs reported Quantum Streaming as a malware.

This qmx file type entry was marked as obsolete and no longer supported file format.

This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.

How to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .qmx file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to solve problems with QMX files

  • Associate the QMX file extension with the correct application. On :
    Windows: Right click on any QMX file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.QMX files". Mac: Right click (or Ctrl-click) the QMX 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 .QMX is Quantum Streaming video. Because only the current version supports the latest QMX file format. Search, therefore, e.g. on the manufacturer website after an available .QMX is Quantum Streaming video update.
  • To make sure that your QMX file is not corrupted or virus-infected, get the file again and scan it with antivirus software.