MCT File - opening and understanding
Did your computer fail to open a MCT file? We explain what they are used for and recommend software that we know can open or otherwise handle your .MCT files.
What is a MCT file?
The .mct file extension is most commonly associated with the Windows Live Messenger application. The MCT files contain packaged "wink" files that are used by the Windows Live program. "Winks" are flash animations that are used to convey emotions in IM conversations. Some MCT files are provided free with the Windows Live software while others can be purchased online from third-party vendors.
The .mct file extension is also used for Musicator MIDI files and MapChart genetic map data files.
How to open MCT files
You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension MCT for different purposes.
While we have not verified the apps ourselves yet, our users have suggested 10 different MCT openers which you will find listed below.
Suggest another file format using extension MCT
While we know of one file format using the .MCT file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .MCT file.
Various viewers for this file format
These apps are known to open certain types of MCT files. Remember, different programs may use MCT files for different purposes, so you may need to try out a few of them to be able to open your specific file.
 | Mathsoft Mathcad | User submitted |
 | MIDAS/Text Editor | User submitted |
 | Mathcad Professional | User submitted |
 | Mathcad | User submitted |
 | MKLock | User submitted |
 | MapChart | User submitted |
 | Musicator | User submitted |
 | Gemmico FolderInfo | User submitted |
| Musicator Win | User submitted |
 | MusicPlayer | User submitted |
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