Excel (or similar spreadsheet programs) is indeed great and has it's place. There are certain area's where there is no real replacement which is impressive. How

Excel (or similar spreadsheet programs) is indeed great and has it's place. There are certain area's where there is no real replacement which is impressive. However I think that creating (interactive) applications is not one of the jobs Excel is the best tool for the job. This exactly the argument I try to make Excel (spreadsheets) is a great interface for processing and working with certain type of data, think economic etc. but it is not great for other things. There we need a different interface to efficiently communicate our intent. For example programming languages or even writing a novel would not work very well in a Excel sheet (though no doubt someone has attempted it).