Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .efr

2 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .efr file?
  • Which program can create the .efr file?
  • Where can you find a description of the .efr format?
  • What can convert .efr files to a different format?
  • Which MIME-type is associated with the .efr extension?
Encryptafile Private Key .efr file icon

Encryptafile Private Key

EFR file is an Encryptafile Private Key. Encryptafile is a powerful tool that supports both traditional secret-key encryption as well as public-key encryption. An EFR file is a file that contains a hexadecimal representation of a private key.
Detailed description not available
Category: Other files
Application: Encryptafile
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Encryptafile Signature
Encryptafile Encrypted File
Encryptafile Public Key
Elixir DesignPro Tools New Form .efr file icon

Elixir DesignPro Tools New Form

EFR file is an Elixir DesignPro Tools New Form. DesignPro Tools provides a visual interface that enables document designers to create and edit the forms, fonts and images you need for business communications produced on AFP and Xerox production printers.
Detailed description not available
Category: Document files
Application: DesignPro Tools
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Elixir DesignPro Tools Form

Other types of files may also use the .efr file extension. If you have helpful information about .efr extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Hasselblad RAW Image
Gambit Extensive Game Format File
MODFLOW Streamflow-Routing Package
Ensoniq EPS Instrument File
Finalburn Alpha Movie Capture
Embird Color Palette Data
Efficient Reminder v2 Data
DataFlex Registration Data
ChiWriter Hi-res Screen Font

The .efr filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

evr (1), 3fr (1), err (1), er (1), eft (1), eff (1), efd (1), wfr (1), eer (1), rfr (1), ecr (1), ffr (1), dfr (1), etr (1), erf (1)

Can't open a .efr file?

If you want to open a .efr file on your computer, you just need to have the appropriate program installed. If the .efr association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.efr

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

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.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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