File Extension Library

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.$EFS File Extension

  • Developer by: Microsoft Corporation
  • Category: Encoded and encrypted Files

What are .$EFS files and how to open them?

Can't open .$EFS file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .$EFS file.

What is a .$EFS file extension?

.$EFS file extension is created by Microsoft Corporation. .$EFS has been classified as Encoded and encrypted Files.

.$EFS is Encrypted EFS data

The $efs file extension is mainly related to EFS files encrypted in Microsoft Office Word 2003.

In order to decrypt these files you need a proper certificate from the original creator of the document. EFS is short for encrypted file system.

.$EFS file format is deprecated and this file format is no longer supported.

Currently, .$EFS file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

Use Microsoft Word 2003 to work with *.$efs files.

How to convert:

There is no way how to convert the encrypted *.$efs files. However, after decoding the *.$efs files, original files can be converted.

How to fix problems with .$EFS files

  1. You need to update the application that you normally use to open .$EFS files. Only the latest version of the software supports the current .$EFS file format
  2. You need to check the .$EFS file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)
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