Opening a MEF File

The MEF file type is primarily associated with System Center Configuration Manager.

MEF	File extension: MEF
	File type:	firmware update file

What is a MEF file?

MEF files mostly belong to System Center Configuration Manager. Firmware Update File: Some MEF files are designed to provide firmware update instructions using the Managed Extensibility Framework. These files are used by tools like System Center Configuration Manager to securely apply firmware updates on systems.
MATRIXX Event Log File: Other MEF files are formatted in XML to record event logs. They capture system events for the MATRIXX Convergent Charging System.

Firmware updates are packaged as MEF files to deliver update instructions without user modification.
Event logs in MEF format use XML for structured data logging and are often viewed with an XML viewer or text editor.

FilExt.com notes: If you encounter a MEF file, check which usage applies. For firmware update files, rely on your system management tool. For XML event logs, a standard XML viewer will display the file’s contents. More about the MATRIXX event log files can be found at MATRIXX.

How to open a MEF file

You need a suitable software like System Center Configuration Manager to open a MEF file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your MEF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a MEF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online MEF Text Viewer

Choose your .mef file to analyze

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Online File Viewer

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Programs that open and convert MEF files:

System Center Configuration Manager
See the previous paragraphs to learn more about the main application. MEF files are often referred to as System Center Configuration Manager systems because this type of file is primarily created or used by this software.
Jaws PDF Server (Exported Settings) by Global Graphics Software Ltd.
Jaws PDF Server is a centralized, server-based software solution for standardized PDF file creation, optimization and distribution. The server uses .CFG for saved configuration files and .MEF for exported configurations. According to reports, the files are identical.
MAIET (Encrypted File System) by MAIET entertainment, Inc.
MAIET Entertainment is a Korean game developing company that are best known for creating the third-person shooter game GunZ: The Duel. The identifying characters used for this association are - Hex: 4D 41 49 45 54 20 45 6E 63 72 79 70 74 65 64 20 46 69 6C 65 20 53 79 73 74 65 6D, ASCII: MAIET Encrypted File System. Related links: Wikipedia MAIET Page

Technical Data for MEF File Extension

File classification:

System

Identifier:

Hex: 4D 41 49 45 54 20 45 6E 63 72 79 70 74 65 64 20 46 69 6C 65 20 53 79 73 74 65 6D, ASCII: MAIET Encrypted File System (provided by TrID database)

Related files:

upd, mef3, mefd, mwf, zip, tsl, erl, tsh, bin, xml, log, cfg, dat

Related links:

Wikipedia MAIET Page

Mime type:

image/x-raw-mamiya, application/octet-stream

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: Mamiya MEF Image
EXEFile: %ProgramFiles%\ArcSoft\RAW Thumbnail Viewer\RAW Thumbnail Viewer.exe

a mef firmware update file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with MEF files

Associate the MEF file extension with the correct application.
Update your software that should actually open firmware update files. Because only the current version supports the latest MEF file format. Search, therefore, e.g. on the manufacturer website after an available System Center Configuration Manager update.
To make sure that your MEF file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .MEF file online - secure, fast, and no downloads needed.