how to record and calculate a 6 stage program with a spreasheet

[JackOfHearts]

I'm pretty sure now the mail sender works.
So I made another version, the last hopefully and I made 2 video to describe how to use my new spreadsheet.

Here is the link to the video:
http://youtu.be/6w-Q_2PYnpw
http://youtu.be/tUmHt4mnk_M

Here is the link to the spreadsheet (it's the same link):
https://docs.google.com/spreadsheets/d/1...edit#gid=0