XIAO No port shows in Arduino program?

I have 5 XIAOs and an expansion board with OLED.
I have asked for help, nothing works. I get no serial port in Arduino development program…
I am using Lenovo Laptop with win 7.
I get Green Led flashing next to Crystal, Orange Led on XiAO flashing along with Green solid on.
I have tried shorting reset?
Thanks for any help, I have never connected to the XIAO, Never seen a port show up in Arduino program.
Thanks, Mike

Hi MotoDog

Please follow this link:

it should be work.

Best regards