.EFX File Extension

2 file types use the .efx file extension.

eFax Document

Developer j2 Global Communications
3.4  |  10 Votes

What is an EFX file?

Document created by eFax, a service that sends and receives faxes as document attachments via email; contains email attachment and email body text; can be converted into .PDF or .TIF files using eFax Messenger.

More Information

eFax documents can be converted from over fifty different email attachment file types in eFax software, including .PDF, .DOC, .JPG, .XLS, and .HTML.

eFax services are available in Plus, Pro, and Corporate versions.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open EFX files

Jedi Knight Effects File

Developer Raven Software
2.0  |  1 Vote

Effects file used by Star Wars Jedi Knight: Jedi Academy, a Star Wars Jedi game where the player chooses to follow the light or dark side; contains information that describes different effects that occur throughout the game.

More Information

The EFX file is used to store information about a variety of effects such as when a lightsaber hits another light saber (saber block), a lightsaber hits a person (creating "blood sparks"), or a lightsaber hits an object (cutting the object). Other effects contained within the EFX file includes explosions and "force" related effects like lightning. The EFX can also be opened and edited to create customized effects.

Programs that open or reference EFX files

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