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Details of the .sef file extension

The table below provides useful information about the .sef file extension. It answers questions such as:

  • What is the .sef file?
  • What program do I need to open a .sef file?
  • How can the .sef file be opened, edited or printed?
  • Where can I find the specifications for .sef?
  • Which MIME-type is associated with the .sef extension?
  • How can I convert .sef files to another format?
  • What are other, similar filename extensions to .sef?

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

.sef file extension details

Encryptafile Signature

Encryptafile Signature .sef file icon
SEF file is an Encryptafile Signature. Encryptafile is a powerful tool that supports both traditional secret-key encryption as well as public-key encryption. An SEF file (Encryptafile Signature file) is a file that contains digital signature data and/or a digital envelope.
SEF format description not yet available
Category: Other files
Application: Encryptafile
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
SEF aliases:
SEF related links:
SEF related extensions:
Encryptafile Encrypted File

Encryptafile Private Key

Encryptafile Public Key

Other types of files may also use the .sef file extension.

.sef file extension error

The .sef file extension is often given incorrectly!

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

swf, sdf, srf, sfe, ssf, sec, se, set, xef, ser, eef, ef, cef, sev, zef

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Shockwave Flash
Microsoft SQL Server Database
Iconics GraphWorx32 Symbol Library
Sony RAW Image
BrainVoyager QX Surface Data
Trimble SSF Data
Logomatic v2 Firmware
Bioware Aurora Sound Set File
Migration Wizard Secondary IFF File
SmartCAM Connection Settings File
open .sef file

Can't open a .sef file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .sef file association, check the FAQ.

.sef file extension

Can I change the extension of 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 the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .sef file extension, write to us!

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