I cannot open a MT9 file. What should I do? Help!

Virtually anyone has encountered some problems with opening unknown files while working on a computer. It can be very frustrating. Yet such problems, not only with MT9 files, can be addressed in a standard way. Follow the steps below and we can guarantee that your problem with opening MT9 will be resolved!

MT9 File Extension

File
  • File type MT9 Audio Format
  • File developer ETRI
  • File category Audio Files
  • File popularity rating
    • Star
Open

How to open MT9 file?

If given user account does not have necessary permissions to open files with MT9 extension, it is highly probable that no program that supports given files is installed on the users’ system. Below is a list of actions user should pursue in order to resolve most common problems.

Step 1. Download and install application that supports MT9 files

After the application has been installed, the system should automatically open MT9 files with given application. Below is the list of relevant programs along with operating systems they are available for:

Programs that support MT9 files

Step 2. Verify whether MT9 files are associated with appropriate software

It is possible that an application that supports MT9 files is not associated with such files. In such case, the program should by manually associated with MT9 files (right-click on the file icon → PropertiesGeneral Tab → In submenu "Open with" and click on "Change" button. System will display a list of suggested programs that support MT9 files. Choose the application by checking the box "Always use the selected application to open this kind of files". System will store this information in its registry and use it to open MT9 files with the selected program.

Changing MT9 file association in registry

File association for MT9 files can be edited manually by editing appropriate entry in Windows System Registry. However, it is discouraged as it may introduce errors to registry if not done properly and may even damage the system.

Step 3. Check MT9 file for other errors

  • MT9 file was not copied properly from storage medium.
  • Antivirus application prevents opening MT9 files. In that case it is recommended to exercise extreme caution and recover or delete infected MT9 file. It is also advised to scan the entire system for malicious software and viruses with antivirus software.
  • For MT9 files downloaded from the internet it is advised to check if the file has been downloaded completely and is not corrupted. If not, the file should be re-downloaded.

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