EF3 file format description

EF3 file format

We made this page to help you understand how to work with EF3 files. Here, you can find info on software that can handle these files. It includes simple programs for opening and converting them.

Learn about the EF3 file and its functions here!

We also explain how to convert them into other types. It's simple and hassle-free. For opening or changing EF3 files, this page offers all the tools you need.

#1 eFax Document

The EFX file is categorized under Document. It is associated with eFax Messenger, serving as an eFax Document. eFax is a service of j2 Global Communications that allows users to receive and send fax documents in digital format (e.g., in email). Visit the website of eFax Messenger for a detailed description of the EFX format.

Application:eFax Messenger
Category:Document files
Magic:- / -
Aliases:ef3, efax

eFax Document related extensions

  • twdx MindMapper 12 XML Map
  • v3v Vector Art 3D Model
  • ivt MSDN InfoViewer Title Data
  • easm eDrawing Assembly Document

Did someone accidentally misspell the EF3 filename?

The EF3 filename extension may be misspelled. We compiled a list of similar file extensions to help you find errors.

Filename extensions similar to EF3:

Windows can't open your EF3 file?

When you try to open a file by double-clicking it, Windows looks at the file's name to figure out what to do. If Windows doesn't know the file type, it'll ask you to choose an app to open this EF3 file.

To set the EF3 file association in Windows 11, you can follow these steps

  1. Open the Settings app by clicking on the Start menu and selecting the gear icon.
  2. In the Settings app, click on System and then select Apps from the left-hand side menu.
  3. Scroll down and click on the Default apps option.
  4. In the Default apps section, you will find various categories. They include Email, Web browser, and Music player.
  5. Locate the category that matches the file type you want to associate. For example, choose Photos for image files, or Video player for video files.
  6. Click on the current default app listed under the category. A list of available apps will appear.
  7. Choose the app you want to set as the default for that file type. If the app you want is not listed, click on More apps to see more options. Or, click on Look for an app in the Microsoft Store to search for apps.
  8. After selecting the app, it will become the default choice for opening files of that type.

It's worth mentioning that you don't always need to set EF3 file association. Many apps can open files. They don't need a specific file association to be set.

Handle EF3 files with care

Exercise caution when handling EF3 files from unknown sources. Files from certain sources can threaten your computer's security. They might contain malware, viruses, or harmful software. To minimize risks, avoid downloading or opening unfamiliar EF3 files. Use trusted antivirus software to scan files from unknown sources before opening.

If you find the information on this EF3 page useful, please feel free to link to this page. >> EF3 file