need help as rock beebox bios reflash spi

Hello
My beebox is in bootloop since it flashed a new bios 2.20 .display stays black. i removed battery and clear cmos but still bootlooop.
I have here a fully spi programmer with the software
but i dont know if i can flash the extracted bios from the website. Its a .30 file ....not bin or somewhat

Bios is this:
http://asrock.pc.cdn.bitgravity.com/BIOS...30)ROM.zip

can someone help me to prepare the file to flash this file with the spi programmer...

thanks