EFX File Extension

What is EFX file?

Files with the EFX extension belong to the fax file category.

What do EFX files contain?

Contents of files with the EFX extension are faxes, created through a service called eFax. It allows sending and receiving fax messages via email. In EFX extension files, email messages and attachments are stored. The content of EFX files can be distinguished:

• graphics, photos, and images,
• text blocks,
• tables, charts, and diagrams.

What are EFX files used for?

Files with the EFX extension can be converted into almost all the most popular text resources, including PDF, TXT, and even HTML or XLS. Thanks to this, the eFax service offers great functionality, which makes it very popular. It supports a virtual fax that converts documents into email messages. This way, you can send and receive data more quickly and efficiently, as well as work with information and use it in further processing.

Programs which support EFX file extension

The following list contains programs grouped by 3 operating systems that support EFX files. Files with EFX extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Updated: 03/14/2024

How to open file with EFX extension?

Problems with accessing EFX may be due to various reasons. What is important, all common issues related to files with EFX extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The following is a list of guidelines that will help you identify and solve file-related problems.

Step 1. Get the eFax

Problems with opening and working with EFX files are most probably having to do with no proper software compatible with EFX files being present on your machine. The solution is straightforward, just download and install eFax. Above you will find a complete listing of programs that support EFX files, classified according to system platforms for which they are available. If you want to download eFax installer in the most secured manner, we suggest you visit j2 Global, Inc. website and download from their official repositories.

Step 2. Update eFax to the latest version

If the problems with opening EFX files still occur even after installing eFax, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of eFax is available. Sometimes software developers introduce new formats in place of that already supports along with newer versions of their applications. If you have an older version of eFax installed, it may not support EFX format. The most recent version of eFax is backward compatible and can handle file formats supported by older versions of the software.

Step 3. Associate EFax Document files with eFax

After installing eFax (the most recent version) make sure that it is set as the default application to open EFX files. The method is quite simple and varies little across operating systems.

Change the default application in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the EFX file
• Next, select the Choose another app option and then using More apps open the list of available applications
• The last step is to select Look for another app on this PC option supply the directory path to the folder where eFax is installed. Now all that is left is to confirm your choice by selecting Always use this app to open EFX files and clicking OK.

Change the default application in Mac OS

• By clicking right mouse button on the selected EFX file open the file menu and choose Information
• Find the Open with option – click the title if its hidden
• Select eFax and click Change for all...
• Finally, a This change will be applied to all files with EFX extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the EFX file is complete and free of errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper EFX file. Problems with opening the file may arise due to various reasons.

1. Verify that the EFX in question is not infected with a computer virus

If the EFX is indeed infected, it is possible that the malware is blocking it from opening. Scan the EFX file as well as your computer for malware or viruses. EFX file is infected with malware? Follow the steps suggested by your antivirus software.

2. Ensure the file with EFX extension is complete and error-free

If the EFX file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. If the EFX file has been downloaded from the internet only partially, try to redownload it.

3. Check if the user that you are logged as has administrative privileges.

Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.

4. Verify that your device fulfills the requirements to be able to open eFax

The operating systems may note enough free resources to run the application that support EFX files. Close all running programs and try opening the EFX file.

5. Ensure that you have the latest drivers and system updates and patches installed

Latest versions of programs and drivers may help you solve problems with EFax Document files and ensure security of your device and operating system. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle EFX files.

Do you want to help?

If you have additional information about the EFX file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on EFX file.