MMC File Extension

The MMC file extension was created by Microsoft and is also known as the Microsoft Media Catalog. MMC is classified as a Data Files and The format of this file type has not been determined yet. You can open MMC files in Oasys Mail Manager program.

Microsoft Media Catalog File Type

Microsoft Media Catalog File Type
Extension .mmc
Developer Microsoft
Popularity 5.0 (22 Votes)
Mime Type mime-type/not.available
Default Program Oasys Mail Manager
Category Data Files
Format Not Available
Updated 7/1/2025

What is a MMC File Type?

An example of an MMC file is Artgal50.mmc, a catalogue file containing images, keywords and thumbnail views used by Clip Gallery.

Free Online MMC Tools & Apps

Access powerful and secure free online MMC tools to convert, view, edit, merge, split, and compare MMC files — all without installing any software. Our tools support the .MMC (Microsoft Media Catalog) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your MMC files directly from your device with ease.

MMC Files Common Issues

There are few common issues with the Microsoft Media Catalog .MMC File Extensions while opening the .MMC files on Windows and MacOs, we have solution to those issues such as:

Can't Open MMC Files?

  1. You must have supported software programs installed for Microsoft Media Catalog on your system such as Oasys Mail Manager.
  2. Associate default Oasys Mail Manager Oasys Mail Manager program for *.mmc (Microsoft Media Catalog) files.

    Associate MMC Default Program on Windows
    1. Right-click a *.MMC (e.g example.mmc) file and click Open With.
    2. In the Open with dialog box, click Oasys Mail Manager Oasys Mail Manager program Or click Browse to locate the program (*.exe) that you want.
    3. Select check box for Always use this app to open .mmc files.

Related MMC File Extensions

MMC default file extension is .MMC and other similer related extensions are:

All Platform Software Programs for MMC File Extension

List of all softwares that can open the MMC files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Microsoft Windows logo image Open MMC File on Windows

Software License Developer
Oasys Mail Manager image. Oasys Mail Manager 000 for Windows Free Trial Oasys Mail Manager

MacOs logo image - FileProInfo.comOpen MMC File on Mac OS

Software License Developer

Linux logo image - FileProInfo.comOpen MMC file on Linux

Software License Developer

Website logo image - FileProInfo.comOpen MMC file on Web

Software License Developer

iOS logo image - FileProInfo.comOpen MMC file on iOS

Software License Developer

Android logo image - FileProInfo.comOpen MMC file on Android

Software License Developer

About Licensing

  1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
  2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
  3. Free+ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
  4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
  5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

MMC file extension icon image.About MMC - Microsoft Media Catalog

FileProInfo is to help you understand about the Microsoft Media Catalog with *.MMC suffix, and provide the complete detail as how to open, edit, convert, merge, split and compare it with other related software programs, software download links and free online apps and tools.

Our professional team members at FileProInfo have been individually researched and verified the details for MMC. We want to be 100% accurate and publish the information about file formats, tools, apps and software programs that we have tested and validated.

If you would like to suggest any additions or updates to this page for MMC, please let us know.

Updated 7/1/2025