Opening EFX files

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

What is an EFX file?

Files that contain the .efx file extension are most commonly associated with the eFax fax messaging software program.

eFax is a digital faxing application that allows users to send and receive fax transmissions via email or by using the online eFax Internet interface.

When a fax document is created by the eFax application, the file is saved to the user's computer with the .efx extension. These files can contain the body of the email that was sent via fax as well as any attachments that the fax may have included.

EFX files can be converted into PDF or TIF files using the eFax Messenger application.

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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