PX4 flow not recognized by PC

Hi all,
Trying to install a PX4 flow sensor to my quad copter for GPS denied flight.
I have the sensor wired up and it powers on fine, but I cannot get my computer to recognize it no matter what I try… I have downloaded the PX4 flow windows driver but I cannot understand how to install it, It just comes up as a read me file in the downloads folder after I have extracted it.

Any ideas or help would be appreciated, I have tried plugging this sensor into a windows 10 laptop as well as a windows 7 laptop and it wouldn’t recognize it on a com port on either computer.