@MaanRz
Given the date of your post, I would have expected someone to respond to it before this -- but since that has not happened, I will take a shot at it ...
HP does not provide BIOS updates as separate BIN files; they only provide the softpaq files -- which are self-extracting executables.
However, if you download and install the 7-zip utility, it will extract the components and you will have the BIN file. You can get that utility from here: https://www.7-zip.org/download.html
Good Luck
I am a volunteer and I do not work for, nor represent, HP