Bios Update Procedure

At the recommendation of someone on these boards, I downloaded the latest bios for my Switch 10.  The only thing on the d/l page is the bios itself and a warning that it can screw up your computer.  Given this, one would think there would be detailed instructions, but no.

So I did the Acer chat and made contact with Apu from the Quickee Mart (at least I think that was his name).  I should have asked for a slurpee, because he was no help at all.  He said to 'just' run the setup file in the bios (which is actually an .exe file).

Can anyone point me to detailed instructions on how to do the bios update?  If I brick this thing, I'm still within the return period, but I'd rather avoid that.  Thanks.