HoseCrusher - Wow, right you are!
I would chastise myself for not reading the instructions thoroughly, but there were no instructions included with the version I have.
Thanks for the help!

I see mentions in the forums about tools to read CPAP downloads, but I am more interested in reading the very simple csv downloads from my fingertip pulse oximeter. Does anyone know of a nice tool (maybe just a macro for microsoft excel) that can generate graphs, or provide event and duration counts...