@javier71 Welcome to the Win-RAD Forum!
Your attached BIOS files can be opened (showing all included modules) by any UEFI BIOS Modding tool (e.g. the UEFITool according to >this< Guide).
If you really want to change the hex code of the BIOS (very risky!), you will have to use an Hex Editor like the tool HxD.
What does that mean? A BIOS has to be flashed, not installed. If you want to flash a modded BIOS, you should read the first post of >this< thread.
Good luck!
Dieter (alias Fernando)