bios update file as 8f0 format ... who to edit this

[sectaur]

hi,
 i wanted to modify a rom for a Msi x58 Pro-E and have the bios rom in an *.8f0 file format.
actually i thought with AMIBCP4.53 i could edit it. but this file format is not supported. 

are there any bios config tools that support 8f0 ? 

greetings


EDIT:
i think i must flash the *.8f0 bios file first and then i make the backup with AFUWINGUI... this backup bios image, i can use this with AMIBCP4.53
(i hope)