I cannot open a MPO 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 MPO files, can be addressed in a standard way. Follow the steps below and we can guarantee that your problem with opening MPO will be resolved!
MPO File Extension
- File type Multi Picture Object Format
- File developer CIPA
- File category Raster Image Files
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File popularity rating
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What is a(n) MPO file?
The MPO (Multi Picture Object Format) file format is developed primarily for 3D imaging devices and cameras. It is a JPEG-based format that stores a pair of two or more 2D-JPEG pictures in a single file. It supports different components for left- and right-eye views, as well as different data like Depth Map, which is used to convert two-dimensional images into 3D images. It also allows embedded Exif metadata to remain intact.
MPO files are often used to store anaglyph images, which contain color-coded images for each eye, used by 3D glasses for an immersive viewing experience. The MPO image format is supported by some image viewers and 3D TVs, giving photographers the opportunity to share their images with a wider audience.
How to open MPO file?
If given user account does not have necessary permissions to open files with MPO 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 MPO files
After the application has been installed, the system should automatically open MPO files with given application. Below is the list of relevant programs along with operating systems they are available for:
Programs that support MPO files
Step 2. Verify whether MPO files are associated with appropriate software
It is possible that an application that supports MPO files is not associated with such files. In such case, the program should by manually associated with MPO files (right-click on the file icon → Properties → General Tab → In submenu "Open with" and click on "Change" button. System will display a list of suggested programs that support MPO 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 MPO files with the selected program.
Changing MPO file association in registry
File association for MPO 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 MPO file for other errors
- MPO file was not copied properly from storage medium.
- Antivirus application prevents opening MPO files. In that case it is recommended to exercise extreme caution and recover or delete infected MPO file. It is also advised to scan the entire system for malicious software and viruses with antivirus software.
- For MPO 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.
