MMC File Extension

MMC file extension is created by Microsoft, also known as Microsoft Media Catalog. MMC has been classified as Data Files. 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	Very Common Common Average Uncommon Rare 5.0 (22 Votes) Thank you for voting!Already voted, thanks!
Mime Type	mime-type/not.available
Default Program	Oasys Mail Manager
Category	Data Files
Format	Not Available
Updated	6/1/2025

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

We have also the free online .MMC (Microsoft Media Catalog) file extension apps that can allow to view, edit, convert from to MMC, merge, split and compare the MMC files without installing anything on your system. Please click on the links to explore the complete list of details for each required feature.

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.

Open MMC File on Windows

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

Open MMC File on Mac OS

	Software	License	Developer

Open MMC file on Linux

	Software	License	Developer

Open MMC file on Web

	Software	License	Developer

Open MMC file on iOS

	Software	License	Developer

Open 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.

About MMC - Microsoft Media Catalog

Updated 6/1/2025

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