There are several vendors out there selling version control for spreadsheets like pathio, Finsbury Solutions. IMHO the problem is that devs know the value of ve

There are several vendors out there selling version control for spreadsheets like pathio, Finsbury Solutions. IMHO the problem is that devs know the value of version control, but it's a hard sell to the busy end users building sheets who see only barriers and controls. I believe unit testing for spreadsheets could eliminate the kind of errors that we saw in the London Whale spreadsheet [1]. SpreadServe's Python API enables you to build spreadsheet unit tests. I really should get round to posting some sample sheet unit tests on github. [1] https://baselinescenario.com/2013/02/09/the-importance-of-excel/ https://baselinescenario.com/2013/02/09/the-importance-of-ex...