.CTT File Overview

File Extension:	CTT
File Type Description:	Messenger Contact List
File Type Developer:	Microsoft Corporation
Primary Associated Software:	Microsoft Notepad
Primary Software Developer:	Microsoft Corporation

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Home File Types Data Files CTT

What is File Extension CTT?

Don Ho created the Messenger Contact List (CTT) file for the Notepad++ software series. Internal website statistics show that CTT files are most popular with users in United States and those running the Windows 10 operating system. Google Chrome is their primary internet browser for the bulk of these users.

Associated Developers and Software

	Notepad++ by Don Ho
	LabVIEW by National Instruments
	Sublime Text by Sublime HQ Pty Ltd
	Microsoft Messenger by Microsoft Corporation
	Microsoft Windows Live Messenger by Microsoft Corporation
	Microsoft Notepad by Microsoft Corporation

Top CTT User Languages

Top CTT File User Browsers

Desktop Friendly?

Mobile Friendly?

Top User Operating Systems


Windows 10	Windows 11	Windows 6	Windows 8.1

Associated Operating Systems

	Windows
	Mac
	Linux

Other File Types Related to CTT Files

Extension	File Type Developer	File Category	File Type Description
._VWINXSLN140	Microsoft Corporation	Data Files	Microsoft Visual Studio Data
.JNLP	Oracle Corporation	Web Files	Java Web Start File
.ASD	Microsoft Corporation	Backup Files	Word AutoSave File
.ERL	INCA Internet	Uncommon Files	GameGuard Error Log File
.PPSX	Microsoft Corporation	Data Files	PowerPoint Open XML Slide Show
.INH	Microsoft Corporation	Developer Files	Visual Basic Basfwin File
.PPSM	Microsoft Corporation	Data Files	PowerPoint Open XML Macro-Enabled Slide Show
.VMM	Microsoft Corporation	Video Files	Microsoft 3D Movie Maker Video File
.MST	Corel	Settings Files	Corel Presentations Master Template File
.H264	Ulead Systems	Video Files	H.264 Encoded Video File