I completely appreciate that. I was also attempting to tell regular excel users about the virtues of TDD! I had grander plans where I imagined creating centrali

I completely appreciate that. I was also attempting to tell regular excel users about the virtues of TDD! I had grander plans where I imagined creating centralised test suites that caught more generic issues and anybody in the bank could upload their spreadsheet for validation. It didn't quite get that far though.