Here's the spreadsheet I mentioned. Jeesh it's crude. Shows me how much I've learned in the last year. Still it's somewhat useful for doing things Kryotherm won't.
Hopefully anyone interested will be able to use that URL. IE opens the spreadsheet inside a browser window for me I don't know if other browsers will. For some reason I can't post attachments anymore, otherwise I would have attached a 'zip' that anyone could download.