I spend a lot of time writing software but there are many software engineers who post samples of code on sites like The Code Project these guys have something to loose I guess but they are happy to help others too - and I for one am very glad that they do! I have even had some offers of employment resulting from posts I have made there. ExcelCalcs seems to share code in much the same way but code in the form of formulae in spreadsheet cells. There is no better way of learning than following and understanding some other guys approach - so I say share and be happy. I have already uploaded two calculations to the site and I would post more but I am not sure that they are presentable yet.