File Extension Database

Open MCO File

The MCO extension file contains Flash-based animations, called Winks, that could be sent using Windows Live Messenger (formerly MSN Messenger).

About Windows Live Messenger

It was an instant messaging client developed by Microsoft and integrated into the Windows operating system.

It connected to the Microsoft Messenger service and, in later versions, was compatible with Yahoo! Facebook messaging until its exit from the market in 2013.

MCO files are similar to sending an emoticon, but could be a much broader and more functional animation.

Winks saved in MCO files can be installed via Messenger Jump! MSN Winks Installer or MSN BackUp.

Windows Live Messenger was discontinued in 2013 and has been integrated into Skype.

The closest software that uses this type of technology (not in MCO files) is Telegram Messenger.

Software for opening and working with MCO files

Windows Live Messenger (NOT available)

How Can I Open MCO File on Windows

We researched and learned that the best way to open MCO file is to find a MCO file in question in Windows OS File Explorer and double click on it to launch the corresponding application.
If a MCO file is not opened in an application and you instead get a "Windows can't open a file" error message you should try looking for an application which can open the file in question.
If you know the application which can open MCO file then run it and see if there is a File->Open main menu option in the application.
If you don't know the application which function as MCO file opener then try to search online for "MCO viewer", "application to open MCO file" or "open MCO file" queries in the search engine you like.
Install the application you found and check if it can open MCO file

How Can I Open MCO File on Mac OS

We recommend to find a MCO file in question in Mac OS Finder and double click on it to launch the corresponding application.
If a MCO file is not opened in a Mac OS application and you instead get a "There is no application set to open the file" error message you can click on "Search App Store" in the error dialog and Mac OS will show you applications compatible with MCO file.
If you know the Mac OS application which can work as MCO file opener you can choose the "Choose Application..." option in the error box to associate the file extension and open MCO file in it.
If you don't know the application which can open MCO file then try to search for "MCO viewer", "application to open MCO file" or "read MCO file" queries in the online search engine you like.
Install the application you found and check if it can read MCO file

How Can I Open MCO File on Android

If you downloaded a MCO file on Android device you can open it by following steps below:

In the Android apps list on your Android device find "My Files" or "File manager" app and tap to start it.
Tap on "Downloads" folder inside the app.
You should see your downloaded MCO file in that folder.
Tap on the file. If Android device supports opening the file you downloaded it will open in the corresponding app.
If file does not open you can look for the corresponding app that can open the file by searching Android App Store for the "MCO".
If you cannot open the file with the apps from Android App Store it is possible that the file could only be opened on desktop platforms such as Windows or Mac OS. Try searching for "MCO viewer", "MCO file reader" online and see if any desktop applications can open it.
It is also possible that the file you downloaded is outdated and is no longer supported.

How to Open MCO File on iPhone or iPad

To open MCO File on iOS device follow steps below:

We advies to open Files app on your iPhone or iPad device. You can find it by swiping down on the home screen and typing "Files" in the search bar.
Tap on the Downloads folder on the Files app home screen.
You will see all files that you recently downloaded. Tap on the MCO file to view it.
If you have the right app that can open it it will automatically launch and open your file.
If you don't have the app which can open it you need to serch Apple app store for "MCO". This way you can find apps which can open MCO files.
If this doesn't help it is possible that your file could be opened only by the desktop application. To find an app which can open it on desktop look for "MCO viewer" or "MCO file" online in your favorite search engine.

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