Robert emailed me the following:
"I just saw your post on the NXTStep asking for a spreadsheet so I thought I would send in one of mine. It displays; the Peeron parts names, Colors, NXT 1.0 part quantities and NXT 2.0 part quantities, as well as the parts difference between the two sets. The idea is that, through the use of the "sort" feature found in most spreadsheet editors, you can find out just about anything you want to know about the different parts. Negative signs in front of the parts differences indicate that the parts are needed to "convert" a NXT 2.0 kit to a NXT 1.0 kit, and vice versa for a positive number.
The spreadsheet format is that of Microsoft Works Spreadsheets, so it should open in Excel (If not I can see if I can save it in Excel format). If you think the spreadsheet has potential, I will look into adding pictures."
Please take a look by downloading the file and providing feedback - you can get the file by clicking here.