How to extract efi from ffs?


Been a while but wondering how would you extract the efi file from a ffs file? My memory a little foggy but don’t you copy paste out everything from the ‘Mz’ keyword in hex editor?

Thank you

[Guide] How to extract/insert/replace EFI BIOS modules by using the UEFITool - BIOS/UEFI Modding / BIOS Modding Guides and Problems - Win-Raid Forum (

ffs/ at master · pbatard/ffs (

Good to know. Thanks though if you have a solitary ffs file you would have to insert it into a rom then use UEFItool. However I was also wondering about the structure. Can look it up. Thank you.

1 Like