Excel needs no defense: it is a rock-solid product which gives non-programmers lots of power. People have tried for decades to build alternatives with little s

Excel needs no defense: it is a rock-solid product which gives non-programmers lots of power. People have tried for decades to build alternatives with little success. EDIT: My favorite example is http://carywalkin.ca/download-arena-xlsm/ http://carywalkin.ca/download-arena-xlsm/