Information about the .ctt (ctt) file type

Below is all the information we have available on file about the .ctt (ctt) file type.

.ctt
Windows Messenger contacts file. Used to import and export a list of contacts from Windows Messenger. It is an XML file, so viewable with a text editor such as notepad.

Where this is available we would like to include file format information on .ctt files, as well as information on how to view or open files of type .ctt. If you know of any information which we have missed then please let us know.