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Basic information about EFS file

When there is a problem with opening files with the file extension EFS（*.EFS or *.efs）, 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 EFS file yourself.

There are 5 file types using the EFS file extension in our database. In the further part of this page, you will find detail information about all the EFS file with their brief description and a list of programs that support EFS file sorted by operating systems. The table below provides useful information about the EFS file extension. It answers questions such as:
  • What is the EFS file?
  • How to open a EFS file?
  • What programs do I need to open a EFS file?
  • What programs help to create and edit a EFS file?
  • How to convert EFS files to another file format?
  • How to convert another files to EFS file format?


1.Detail information about EFS file extension: Microsoft Windows Encrypting File System

File type Microsoft Windows Encrypting File System Category Encoded Files
Developer N/A File format N/A
Description EFS file is a Microsoft Windows Encrypting File System. The EFS is abbreviation of Encrypted File System included in Microsoft Windows operating system from Windows 2000 as a part of NTFS (New Technology File System) that provides file system level encryption of data.

By default the EFS is disabled in Windows, but encryption can be enabled by users on a per-file, per-directory, or per-drive basis.
Software programs that will open, edit or convert EFS files

Windows		 Advanced EFS Data Recovery
Microsoft Windows
Microsoft Windows 2000
Microsoft Windows XP Professional
Microsoft Windows Vista
Microsoft Windows 7
Microsoft Windows 8
Microsoft Windows 10


2.Detail information about EFS file extension: Ensoniq SQ-80 File

File type Ensoniq SQ-80 File Category Audio Files
Developer N/A File format N/A
Description EFS file is a Ensoniq SQ-80 File.
Software programs that will open, edit or convert EFS files

Windows		 Chicken Systems Translator

macOS
 Chicken Systems Translator


3.Detail information about EFS file extension: EasyFlow Data

File type EasyFlow Data Category Misc Files
Developer N/A File format N/A
Description EFS file is a EasyFlow Data.
Software programs that will open, edit or convert EFS files


4.Detail information about EFS file extension: ESignal Formula Script File

File type ESignal Formula Script File Category Data Files
Developer N/A File format N/A
Description EFS file is a ESignal Formula Script File.
Software programs that will open, edit or convert EFS files

Windows		 eSignal


5.Detail information about EFS file extension: Effective File Search File

File type Effective File Search File Category Misc Files
Developer N/A File format N/A
Description EFS file is a Effective File Search File.
Software programs that will open, edit or convert EFS files

Windows		 Effective File Search



Can't open a EFS 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.EFS”。

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 EFS extension without any issue.


Where I can download the application that support EFS 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 EFS 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 EFS file?

The reasons for the lack of the ability to open a EFS 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 EFS file. If there is still something wrong, you might want to check:

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

If the EFS 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.