The "spreadsheet" interface is now universal and not limited to excel. You have a completely equivalent thing with gnumeric, or libereoffice's calc, for exampl

The "spreadsheet" interface is now universal and not limited to excel. You have a completely equivalent thing with gnumeric, or libereoffice's calc, for example. This interface is really great for kids, for example to compute averages and simple formulas, before they learn "serious" programming. I was taught how to use spreadsheets in school and it is easily one of the most useful things that I learned there.