MEF File Extension

What is MEF file?

MEF filename suffix is mostly used for Mamiya RAW Image files. Mamiya RAW Image specification was created by Mamiya. MEF files are supported by software applications available for devices running Linux, Mac OS, Windows. MEF file belongs to the Data Files category just like 1326 other filename extensions listed in our database. PaintShop Pro supports MEF files and is the most frequently used program to handle such files, yet 9 other tools may also be used.

Programs which support MEF file extension

The list that follows enumerates programs compatible with MEF files, divided into 3 categories based on operating system on which they are available. Files with MEF suffix can be copied to any mobile device or system platform, but it may not be possible to open them properly on target system.

How to open file with MEF extension?

There can be multiple causes why you have problems with opening MEF files on given system. What is important, all common issues related to files with MEF extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with MEF files.

Step 1. Download and install PaintShop Pro

Problems with opening and working with MEF files are most probably having to do with no proper software compatible with MEF files being present on your machine. The most obvious solution is to download and install PaintShop Pro or one to the listed programs: ACDSee, Helicon Filter, Picture Information Extractor. On the top of the page a list that contains all programs grouped based on operating systems supported can be found. One of the most risk-free method of downloading software is using links provided by official distributors. Visit PaintShop Pro website and download the installer.

Step 2. Check the version of PaintShop Pro and update if needed

If the problems with opening MEF files still occur even after installing PaintShop Pro, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of PaintShop Pro is available. Software developers may implement support for more modern file formats in updated versions of their products. If you have an older version of PaintShop Pro installed, it may not support MEF format. The most recent version of PaintShop Pro is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Assign PaintShop Pro to MEF files

If the issue has not been solved in the previous step, you should associate MEF files with latest version of PaintShop Pro you have installed 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 MEF file
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where PaintShop Pro is installed. Now all that is left is to confirm your choice by selecting Always use this app to open MEF files and clicking OK.

The procedure to change the default program in Mac OS

• From the drop-down menu, accessed by clicking the file with MEF extension, select Information
• Find the Open with option – click the title if its hidden
• Select the appropriate software and save your settings by clicking Change all
• A message window should appear informing that This change will be applied to all files with MEF extension. By clicking Continue you confirm your selection.

Step 4. Verify that the MEF is not faulty

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper MEF file. Being unable to access the file can be related to various issues.

1. Check the MEF file for viruses or malware

If the file is infected, the malware that resides in the MEF file hinders attempts to open it. Scan the MEF file as well as your computer for malware or viruses. If the scanner detected that the MEF file is unsafe, proceed as instructed by the antivirus program to neutralize the threat.

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

If you obtained the problematic MEF file from a third party, ask them to supply you with another copy. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. It could happen the the download process of file with MEF extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Mamiya RAW Image file.

4. Check whether your system can handle PaintShop Pro

If the systems has insufficient resources to open MEF files, try closing all currently running applications and try again.

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

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Mamiya RAW Image file. It may be the case that the MEF files work properly with updated software that addresses some system bugs.

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