How to store data into Excel read from a serial port?

Is there a way in Excel to read data from a serial port
console (e.g. hyper term) and stuff the data into a
cell in Excel?

We need to do something like this for my son's Cub
Scout Pinewood Derby race.
The times for the cars will be put on a hyperterm by
a sensor. I want to have Excel read that data and
stuff it into a cell.

Can anyone help me on this?

BTW, I am a Software Engineer.

Thanks,

Dave