.ctt file extension
- 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.
Can you add to this? Do you know of any applications not already listed which will work with .ctt files, view .ctt files or open .ctt files? Are you able to contribute any additional reference information or file format information about .ctt files or have you spotted any errors or omissions? If so please let us know by emailing us at firstname.lastname@example.org - Thank you.