File Extension EFX

  • Full name
    Everex EFax Fax Document Format
  • Developer
    j2 Global Communications
  • Popularity
Have you encountered a problem with a EFX file? Don’t you know which program opens a file with this extension? You will find all the information you need about working with a EFX file here. In the further part of this page we have added a list of programs that should open your EFX file. It is enough you choose a proper application for your operating system, download and install it.

What is EFX file?

EFX files are compact FAX files of the software eFax.

More info

eFax stores received faxes in this format, among other things, which can be viewed with the free eFax Messenger. Efx files can be used for local archiving or forwarding of faxes.

eFax by j2 Global Communications is a paperless fax service that gives you your own local fax number. Incoming and outgoing faxes are sent or received via an e-mail or mobile phone number to be specified. The messenger is only available for Windows, but the fax service itself can be used from any system.

Programs which can open a EFX file

How to open file with EFX extension?

In order to open a file with EFX extension one of the following programs must be installed on user’s system. If a problem with opening EFX file occurred, it is highly possible that none of the listed programs is present on user’s system. Even if one or more said programs are installed, there may be issues related with given programs. In order to solve a problem with EFX files, follow the instructions below.
Install eFax or other program from the list

Most often resolving problems with opening EFX files is very simple. Just install an appropriate program that supports such files. All of the listed programs support EFX files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of EFX files or offer file conversion options, but may not be capable of editing such files.

Set eFax as the default program for opening EFX files

It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate EFX files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the eFax applications is not on the list, select "Browse" option in order to manually locate the directory where eFax has been installed.


Check the section that lists most common problems with EFX files

Sometimes problems with opening EFX files may not lie with the application itself, but can arise due to other causes, such as:

  • File data is corrupted
  • EFX files has been not been completely download from the internet (only a part of the data has been downloaded)
  • Currently used user account hasn’t been granted necessary privileges to open EFX files (should that be the case, please contact your system administrator or IT specialist)
  • EFX file was being copied from a corrupted storage device and is incomplete or data is corrupted. (Copying files from unknown or untrusted sources should be conducted with great care as such files may contain malicious software, which can damage your system)

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