EFS file format description

Many people share .efs files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .efs file can be edited, converted or printed with. On this page, we try to provide assistance for handling .efs files.

3 filename extension(s) found in our database.

.efs - SQ-80 Sample

EFS file is a SQ-80 Sample. The Ensoniq SQ-80 is a synthesizer from Ensoniq. It was basically an update to the original Ensoniq ESQ-1 but included more waveforms, a floppy disk drive for storing patches and sequences.

Application:

Category:

Audio files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

SQ-80 Sample related extensions:

.669: Composer 669 Music Module
.rtx: Nokia Phone Ringtone
.omx: OtsAV Media Library Information
.azx: ZX Audio File
.ksc: Korg Trinity Script
.p50: The Player 5.0a Module

.efs - Kryptel Filesets File

The EFS archive files are related to Kryptel. EFS file is a Kryptel Filesets File. Kryptel is a drag-and-drop file and folder encryption that uses strong cryptographic algorithms.

Application:

Kryptel

Category:

Archive files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

Kryptel Filesets File related extensions:

.ebk: Kryptel Backup File
.edc: Kryptel Encrypted Container
.k2p: Kryptel Encrypted Data

.efs - eSignal Formula Script

The EFS data files are related to eSignal. EFS file is an eSignal Formula Script. eSignal is a charting and trading platform that gives all members the opportunity to chart with real-time data, including some specific services.

Application:

eSignal

Category:

Data files

Mime-type:

application/octet-stream

Magic:

- / -

Aliases:

eSignal Formula Script related extensions:

.efslib: eSignal EFS Function Library
.emd: eSignal Market Depth Data
.emp: eSignal Market Profile Data
.ens: eSignal NewsManager Preview Data
.ent: eSignal NewsManager Data
.eqb: eSignal Quote Board Data

Naturally, other applications may also use the .efs file extension. Even harmful programs can create .efs files. Be especially cautious with .efs files coming from an unknown source!

Can't open a .efs 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 can't open this file:

example.efs

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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

Open Control Panel > Control Panel Home > Default Programs > Set Associations.
Select a file type in the list and click Change Program.

The .efs file extension is often given incorrectly!

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

3fs, dfs, ebs, ecs, eds, ees, ef, efc, efe, efq, efw, efx, efz, egs, ers

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

.ets: Enthuware Test Studio Document
.3fs: Puppy Linux Save State File
.rfs: Samsung RFS Image
.ecs: Sony Ericsson P900 Phone Backup
.fs: FlexiSign Document
.evs: Easy Stand Alone Data

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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

https://datatypes.net/open-efs-files

If you have useful information about the .efs file format, then write to us!