MCO File

What are MCO files and how to open them

Are you having problems opening a MCO file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your MCO files.

What is a MCO file?

A .MCO file is a MSN Messenger "Wink" Animation file.

Files with the .mco extension are used by the Windows Live Messenger instant messaging application. Windows Live Messenger allows users to communicate in real-time via online instant messaging technology.

The MCO files used by this software contain flash-based animations that are similar to emoticons but are animated and much larger in size.

These files are commonly referred to as Winks.

How to open MCO files

Important: Different programs may use files with the MCO file extension for different purposes, so unless you are sure which format your MCO file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested seven different MCO openers which you will find listed below.

Last updated: July 31, 2023

Various apps that use files with this extension

These apps are known to open certain types of MCO files. Remember, different programs may use MCO files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about MCO file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.