You haven't said what you're trying to put into that Excel spreadsheet. If it's just rows of text, numbers, and formulas, then it's dead simple. - change your

You haven't said what you're trying to put into that Excel spreadsheet. If it's just rows of text, numbers, and formulas, then it's dead simple. - change your response mime-type to application/excel - supply a filename ending with .xls - output comma-separated text. done. (it only gets difficult if you need to start embedding charts and specifying fonts)