File Extension Search

.efx File Extension

Developer: j2 Global Communications
File type: eFax Document File
You're here because you have a file that has a file extension ending in .efx. Files with the file extension .efx can only be launched by certain applications. It's possible that .efx files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .efx file?

An eFax document file is stored in the EFX format and can be created using the eFax software, and these EFX files can also be exported to other formats like TIF and PDF with the eFax Messenger application. These EFX files are fax documents converted into EFX files by the eFax service, which then transmits these EFX files as email attachments to the designated email addresses configured by a user. These email attachments consist of email subject lines, email body text and the EFX attachment. These EFX files can also be exported into more than 50 other email attachment file formats. Users of Linux-based system can install and use the eFax software, the eFax Messenger application and the eFax service, since there is a version of the eFax software for Linux. There is also a version of the eFax application and the eFax Messenger program for Mac platforms. Microsoft Windows users can acquire the eFax service and install the version of eFax Messenger and the eFax software to create, open and view the data stored in these EFX files, as well as auto fax message conversion and email delivery services.

how to open a .efx file?

Launch a .efx file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .efx file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .efx files aren't yet associated with it. In this case, when you try to open a .efx file, you can tell Windows which application is the correct one for that file. From then on, opening a  .efx file will open the correct application. Click here to fix .efx file association errors

applications that open a .efx file



Efax is an application which deals with the sending and receiving of fax via a personal computer, a fax modem and a telephone line. This software is Open source or free of charge (General Public License), which was developed by Casas Communication Engineering in the early 90s. This software usually operates with a command line interface and lately there are newer version that uses GUI or the graphical user interface. This software bundled in other Linux distributions such as Mandriva, Red Hat, Debian, and many more. Since Efax runs in Unix like operating system, it has a version for BSD or Berkley Software Distribution and Apple's Mac OS X Darwin operating system. This software is only 94.47 KB in size so there will be no special hardware requirements just a modem. Efax utilizes the group 3 protocol over the telephone network which is used publicly, and class 1, 2 and 2.0 fax modems.

a word of warning

Be careful not to rename the extension on .efx files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .efx. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.

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