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Informations about the EFI filename extension and the file formats associated with it

We collected the information you should know about the .efi filename on this page. If you were sent a(n) .efi file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.efi - Extensible Firmware Interface

The EFI file is a Application file, which is connected to the Extensible Firmware Interface according to our registry. We currently can’t suggest an application for opening the Extensible Firmware Interface format.

Format description:
EFI format
Category:
Application
Application:
-
Mime-type:
application/octet-stream
Magic string:
- / -
Aliases:
-
Related links:
UEFI
Related extensions:
.aos
Nokia Phone Add-on Software
.bundle
Mac OS X Application Plug-in
.jad
Java Application Descriptor
.gpe
GP2X Game Executable
.xap
Silverlight Application Package
.pva
PanelView Application

Important! Programs other than the ones listed above may also use the .efi file extension. Even harmful programs can create files with the .efi extension to store data in them. Always be careful with .efi files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .efi file can’t be opened on your computer?

If the program necessary for opening the .efi file is installed properly on your computer, then the quickest and simplest way to open the .efi file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .efi file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .efi extension

The .efi filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .efi files.

sfi, dfi, fi, evi, eri, ei, efo, efk, edi, wfi, ebi, rfi, ffi, eti, eif

Maybe you’re not even looking for the .efi file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .efi extension. It’s possible that the one you’re looking for is among them.

.dfi
TI bqEASY Data Flash Image
.fi
Gforth Image File
.eti
ETI Stream
.efo
EASE Focus Data File
.eci
Ettercap Info Log
.rfi
BlackBerry Email Filter

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

Help us

We regularly check all the links on our pages, but it’s possible that a link doesn’t work or it doesn’t point to the correct page. If you found an error on this page, or if you have information that should be here, then don’t hesitate. Write to us and share your useful information.

We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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