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>> CTT file

CTT file format description

Many people share .ctt files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .ctt file can be edited, converted or printed with. On this page, we try to provide assistance for handling .ctt files.

1 filename extension(s) found in our database.

.ctt - MSN Messenger Contact List

CTT file is an exported MSN Messenger Contact List. MSN Messenger is a deprecated instant messaging client developed by Microsoft for Windows. Messenger was retired in April 2013 and is no longer available or supported on most Mac and Windows operating systems.

.ctt file format description:
CTT format description not yet available
MSN Messenger
Data files
- / -
MSN Messenger Contact List related links:
MSN Messenger Contact List related extensions:
PATCHMASTER Online Analysis Information
ZoneAlarm MailSafe Renamed File
ADRIFT Module File
Poser Compressed Camera Data
DesktopX Theme File
EES Textbook

Naturally, other applications may also use the .ctt file extension. Even harmful programs can create .ctt files. Be especially cautious with .ctt files coming from an unknown source!

Can't open a .ctt file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .ctt file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cft, vtt, tct, ftt, cyt, ctr, ctf, crt, cgt, xtt, tt, stt, dtt, cty, ctg

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

ChiWriter Low-res Screen Font
BrainVoyager QX Contrast Data
AVG Update Control File
Certificate File
TurboCAD Template
Microsoft SQL Server Data Replication Conflict Tables

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If you have useful information about the .ctt file format, then write to us!