Opening ECF files

Did your computer fail to open an ECF file? We explain what ECF files are and recommend software that we know can open or convert your ECF files.

What is an ECF file?

Files that contain the .ecf file extension are most commonly associated with the Microsoft Outlook email and calendar software application.

The ECF files that are used with the Microsoft Outlook software contain add-ins that allow users to install extra features into the Outlook application. The add-in files can be managed using the Add-In Manager that is found in the "Advanced Options feature in the Outlook program.

The Microsoft Exchange Server also uses the .ecf file suffix. These ECF files contain exchange extended configuration files, which are the configuration files that are used to configure the Microsoft Exchange software program.

Try a universal file viewer

In addition to the products listed above, I would suggest that you try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and very likely yours too! Download Free File Viewer.

By Prof. Jones (The File Expert)

Chief Content Editor and File Expert

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