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Basic information about EFX file

When there is a problem with opening files with the file extension EFX（*.EFX or *.efx）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the EFX file yourself.

There are 2 file types using the EFX file extension in our database. In the further part of this page, you will find detail information about all the EFX file with their brief description and a list of programs that support EFX file sorted by operating systems. The table below provides useful information about the EFX file extension. It answers questions such as:
  • What is the EFX file?
  • How to open a EFX file?
  • What programs do I need to open a EFX file?
  • What programs help to create and edit a EFX file?
  • How to convert EFX files to another file format?
  • How to convert another files to EFX file format?


1.Detail information about EFX file extension: eFax Document

File type eFax Document Category Data Files
Developer j2 Global Communications File format N/A
Description EFX file is a eFax Document developed by j2 Global Communications. 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.
Software programs that will open, edit or convert EFX files

Windows		 j2 Global Communications eFax

macOS		 j2 Global Communications eFax

Linux		 j2 Global Communications eFax


2.Detail information about EFX file extension: Jedi Knight Effects File

File type Jedi Knight Effects File Category Game Files
Developer Raven Software File format N/A
Description EFX file is a Jedi Knight Effects File developed by Raven Software.
Software programs that will open, edit or convert EFX files

Windows		 Raven Software Star Wars Jedi Knight: Jedi Academy

macOS
 Raven Software Star Wars Jedi Knight: Jedi Academy



Can't open a EFX file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.EFX”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the EFX extension without any issue.


Where I can download the application that support EFX file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of EFX files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a EFX file?

The reasons for the lack of the ability to open a EFX file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a EFX file. If there is still something wrong, you might want to check:

  • Whether the EFX file is damaged.
  • Whether the EFX file is incorrectly linked in the registry entries.
  • Whether the EFX file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the EFX file format is incompletely.
  • Whether the EFX file is infected.
  • Whether the drivers of the equipment used for opening a EFX file are up to date.
  • Whether your computer has enough hardware resources to open a EFX file.

If the EFX file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.