.ECF File Overview

File Extension:	ECF
File Type Description:	Outlook Add-in
File Type Developer:	Microsoft Corporation
Primary Associated Software:	Microsoft Outlook
Primary Software Developer:	Microsoft Corporation

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Home File Types Plugin Files ECF

What is File Extension ECF?

Outlook Add-in files are the most popular type of files to carry the ECF file extension, originally developed by Microsoft Corporation for Microsoft Outlook. Website visitor analysis indicates that ECF files are commonly found on Windows 10 user machines, and are most popular in China. Google Chrome is their primary internet browser for the bulk of these users.

Associated Developers and Software

	The Sage Group SageCRM by Sage
	Embird Embroidery Software by BALARAD
	WinFax by Delrina
	Eventcorder by BrineSoft
	Microsoft Exchange Server by Microsoft Corporation
	Microsoft Outlook by Microsoft Corporation
	Micrografx Media Manager by Micrografx

Top ECF User Languages

Top ECF 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
	DOS

Other File Types Related to ECF Files

Extension	File Type Developer	File Category	File Type Description
.NAL	Novell, Inc.	Data Files	Novell ZENworks Suite Network Delivered Application Shortcut File Format
.HXL	Microsoft Corporation	Data Files	Microsoft Help Registered Namespace List File
.ODCTABLECOLLECTIONFILE	Microsoft Corporation	Data Files	Microsoft Office Component
.AVS	Adobe Systems Incorporated	Data Files	Adobe Photoshop Variations File
.M4B	Apple	Audio Files	MPEG-4 Audio Book File
.CRT	Mozilla	Web Files	Security Certificate
.PSESS	Microsoft Corporation	Developer Files	Microsoft Visual Studio Performance Session
.GAT	Microsoft Corporation	Data Files	Genetic Algorithm Timetabler
.DVR	Microsoft Corporation	Video Files	Microsoft Recorded TV Show
.PSD1	Microsoft Corporation	Developer Files	Windows PowerShell Data File