CTT File Extension

The CTT file extension was created by Microsoft and is also known as the Messenger Contact List. CTT is classified as a Data Files and This file is saved in an XML structure and its contents can be viewed in a Text Editor. You can open CTT files in Microsoft Messenger program.

Messenger Contact List File Type

What is a CTT File Type?

Contacts saved in a CTT file can be imported into Messenger by selecting File → Import contacts from d' file saved.

Windows Live Messenger was dropped in 2013 and moved to Skype.

Free Online CTT Tools & Apps

Access powerful and secure free online CTT tools to convert, view, edit, merge, split, and compare CTT files — all without installing any software. Our tools support the .CTT (Messenger Contact List) file extension and run smoothly in any modern browser.

Select a tool below to explore features and manage your CTT files directly from your device with ease.

CTT Converter

Open CTT

Edit CTT

Compare CTT Files

Merge CTT Files

Split CTT Files

CTT Metadata Viewer

CTT Files Common Issues

There are few common issues with the Messenger Contact List .CTT File Extensions while opening the .CTT files on Windows and MacOs, we have solution to those issues such as:

Can't Open CTT Files?

1. You must have supported software programs installed for Messenger Contact List on your system such as Microsoft Messenger.
2. Associate default Microsoft Microsoft Messenger program for *.ctt (Messenger Contact List) files.
   
   

   Associate CTT Default Program on Windows

   1. Right-click a *.CTT (e.g example.ctt) file and click Open With.
   2. In the Open with dialog box, click Microsoft Microsoft Messenger program Or click Browse to locate the program (*.exe) that you want.
   3. Select check box for Always use this app to open .ctt files.
   
   

   Associate CTT Default Program on MacOs

   1. Click *.CTT (e.g example.ctt) file and click information -> Open With.
   2. In the programs list, click Microsoft Microsoft Messenger program Or other appropriate program that you want.
   3. Confirm Change for all... and Contine.
   4. A message will appear "This change will be applied to all files with .Microsoft Messenger extension. By clicking Continue you confirm your selection", click Contine to apply changes.

Related CTT File Extensions

CTT default file extension is .CTT and other similer related extensions are:

All Platform Software Programs for CTT File Extension

List of all softwares that can open the CTT files on each platforms such as Windows, Mac, iOS, Linux, Web and Android, you may click the each software link for more details for other supported formats for each software and the verified direct download links for each software with complete lisensing details.

Open CTT File on Windows

	Software	License	Developer
	Swiss Academic Citavi 000 for Windows	Free Trial	Swiss Academic Citavi

Open CTT File on Mac OS

	Software	License	Developer
	Microsoft Messenger 000 for MacOs	Included with OS	Microsoft

Open CTT file on Linux

Open CTT file on Web

Open CTT file on iOS

Open CTT file on Android

About Licensing

1. Free Trial This software are often used for an attempt period, like 14 days, before requiring payment. Some trial versions have a reduced feature set.
2. Free This software is liberal to use. Examples include open-source , freeware software, like free programs supported by advertising.
3. Free⁺ This software is liberal to download and use, but contains in-app purchases (IAP) to unlock additional content or functionality.
4. Paid This software must be purchased so as to use it. it's going to be offered as a perpetual license or ongoing subscription.
5. Included with OS This software is bundled with an OS , like Windows, macOS, or Android.

About CTT - Messenger Contact List