MSWMM File Extension

What is MSWMM file?

MSWMM files are used by Windows Movie Maker software to store projects created with this program. The file doesn’t contain actual video and audio data or still images, only references to that data. Each file also contains titles, movie timelines, and setting related to the movie.

Data stored in MSWMM can be combined and edited using Windows Movie Maker.

Limitations of MSWMM file format

MSWMM format is not the most commonly used format and if used, it usually is converted beforehand to more popular and less limited formats. MSWMM format can be easily converted into many alternative formats, such as AVI, MOV, MP4, WMV, etc.

Programs which support MSWMM file extension

Below is a table that list programs that support MSWMM files. MSWMM files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Updated: 05/15/2023

How to open file with MSWMM extension?

There can be multiple causes why you have problems with opening MSWMM files on given system. On the bright side, the most encountered issues pertaining to Windows Movie Maker Project files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.

Step 1. Get the Windows Movie Maker

The main and most frequent cause precluding users form opening MSWMM files is that no program that can handle MSWMM files is installed on user’s system. The most obvious solution is to download and install Windows Movie Maker or one to the listed programs: Microsoft Windows. The full list of programs grouped by operating systems can be found above. If you want to download Windows Movie Maker installer in the most secured manner, we suggest you visit Microsoft Corporation website and download from their official repositories.

Step 2. Update Windows Movie Maker to the latest version

You still cannot access MSWMM files although Windows Movie Maker is installed on your system? Make sure that the software is up to date. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. This can be one of the causes why MSWMM files are not compatible with Windows Movie Maker. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Windows Movie Maker.

Step 3. Set the default application to open MSWMM files to Windows Movie Maker

If you have the latest version of Windows Movie Maker installed and the problem persists, select it as the default program to be used to manage MSWMM on your device. The method is quite simple and varies little across operating systems.

The procedure to change the default program in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the MSWMM file
• Select Choose another app → More apps
• The last step is to select Look for another app on this PC option supply the directory path to the folder where Windows Movie Maker is installed. Now all that is left is to confirm your choice by selecting Always use this app to open MSWMM files and clicking OK.

The procedure to change the default program in Mac OS

• By clicking right mouse button on the selected MSWMM file open the file menu and choose Information
• Find the Open with option – click the title if its hidden
• From the list choose the appropriate program and confirm by clicking Change for all....
• Finally, a This change will be applied to all files with MSWMM extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Verify that the MSWMM is not faulty

Should the problem still occur after following steps 1-3, check if the MSWMM file is valid. Being unable to access the file can be related to various issues.

1. Check the MSWMM file for viruses or malware

Should it happed that the MSWMM is infected with a virus, this may be that cause that prevents you from accessing it. Immediately scan the file using an antivirus tool or scan the whole system to ensure the whole system is safe. If the scanner detected that the MSWMM file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

2. Verify that the MSWMM file’s structure is intact

If you obtained the problematic MSWMM file from a third party, ask them to supply you with another copy. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. When downloading the file with MSWMM extension from the internet an error may occurred resulting in incomplete file. Try downloading the file again.

3. Ensure that you have appropriate access rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open Windows Movie Maker

If the system is under havy load, it may not be able to handle the program that you use to open files with MSWMM extension. In this case close the other applications.

5. Check if you have the latest updates to the operating system and drivers

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with Windows Movie Maker Project files. It is possible that one of the available system or driver updates may solve the problems with MSWMM files affecting older versions of given software.

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