I'm not sure if you meant to respond to me, but the tools in my use case are use by 'quantitative' traders and modelers - not executives that have other things

I'm not sure if you meant to respond to me, but the tools in my use case are use by 'quantitative' traders and modelers - not executives that have other things to do than worry about programming. Excel is absolutely NOT the tool to go here, it's usually just a sign that either the firm's edge isn't in being particularly quantitative or they are leaving most of the trade on the table. In my experience it's usually the former, since the latter are (and by now have mostly been) outcompeted by trading shops that have moved on to better tools.