.ecf is Outlook Add-in
Key Features: .ECF File Extension
What is an .ECF file?
File extension ecf is associated with Microsoft Outlook, a personal information manager, which is part of Microsoft Office, developed by Microsoft Corporation.
A typical .ecf file represents Outlook Add-in, which is used to add extra features to Microsoft Outlook.
Files with ecf extension can be quite often found as add-ins for Microsoft Outlook time management software and e-mail client.
How to open:Can be managed using Add-In Manager in the Advanced Options in Microsoft Outlook.
How to convert:Conversion to other formats is not possible.
- Microsoft Outlook 2016