Form Creation

Would a kind soul have any advice on how to create a professional-looking form from an existing Excel spreadsheet? Specifically, I want folks in my office to be able to input a date in one box, click on a "calculate" button, and get the result in another box. The underlying formula is simply arithmetic, nothing fancy. Still, I want the form presentation to look clean and professional.

Any help or suggestions would be MUCH appreciated. The file is attached.

tgause,

It depends on your creativity to create good looking / professional looking forms.

all the best!!