What is .EFI file extension?
.EFI file extension is a known file type. This section tells you everything you need to know about this extension.
System file used by both Intel-based computer systems and computer devices such as AppleTVs; contains system-level data that executes between the operating system and the firmware; used for staging firmware updates, booting operating systems, and running pre-boot programs.
Using EFI files, systems can hand off the pre-boot process to a controlled environment. For example, EFI files are sometimes included with firmware updates and are loaded into the device's EFI System partition during the boot process. Here, the executable content in the EFI file safely runs the procedures necessary to update the device.
NOTE: The EFI specification, originally developed by Intel, was updated to the UEFI specification, which stands for "Unified Extensible Firmware Interface." The UEFI standard is maintained by the UEFI Forum.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.