.EF2 File

The eff2 file extension is used by Internet Download Manager, a program for increasing the efficiency of download speeds, as well as download management developed by Tonec Inc.

The ef2 file contains various data used for internal purposes of the Internet Download Manager.

An ef2 file extension is related to the Internet Download Manager. An ef2 file stores some kind of data.

How to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .ef2 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.