Xcelsius and Spreadsheetconverter transform excel to a dashboard with graphs. Very popular.
CanvasJS has much better graphs
Maybe everything can be done with canvasJS and javascript instead.
It would be very interesting as a jump-start to see more examples, especially to generate graphs with formulas.
I am looking for these kind of examples:
Suppose you have 7 sliders giving values a,b,c,d,e,f,g and generate a canvasJS line graph plot from the function
y= a*sin(b*x)^c x-range d-e y range f-g
This or any such example would be of much help to learn the necessary javastript !