(OK, here's my candidate for "Dumb Question of the Week" ... )

You've had many good answers about how to create an Excel spreadsheet without the MS Excel application. Excellent.

My [dumb] question is this:

What's the point?

OK, you can create an Excel spreadsheet in these ways, but what is the User supposed to do with it, given that they don't have MS Excel installed with which to open it?

(I guess I'm missing something really, really obvious, here)

Regards, Phill W.