Coastdown aerodynamic calculator in excel.. Help?

[fumesucker]

I'm doing an online version of my coastdown calculations on a Google Docs spreadsheet.

My knowledge of Excel or any other spreadsheet would fit in a two bit rom.

I can collaborate with any number of people via Google.

Someone who knows spreadsheets to give a hand or tell me a few tips would be way cool.

The thread with the technique and the calculations is at the url below;

http://www.gassavers.org/showthread....ead.php?t=7377