I cannot open a MP9 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 MP9 files, can be addressed in a standard way. Follow the steps below and we can guarantee that your problem with opening MP9 will be resolved!

MP9 File Extension

File
  • File type Multisim 9 Project Format
  • File developer National Instruments
  • File category CAD Files
  • File popularity rating
    • Star
    • Star
Open

How to open MP9 file?

If given user account does not have necessary permissions to open files with MP9 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 MP9 files

After the application has been installed, the system should automatically open MP9 files with given application. Below is the list of relevant programs along with operating systems they are available for:

Programs that support MP9 files

Windows programs
Windows

Step 2. Verify whether MP9 files are associated with appropriate software

It is possible that an application that supports MP9 files is not associated with such files. In such case, the program should by manually associated with MP9 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 MP9 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 MP9 files with the selected program.

Changing MP9 file association in registry

File association for MP9 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 MP9 file for other errors

  • MP9 file was not copied properly from storage medium.
  • Antivirus application prevents opening MP9 files. In that case it is recommended to exercise extreme caution and recover or delete infected MP9 file. It is also advised to scan the entire system for malicious software and viruses with antivirus software.
  • For MP9 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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