I have low vision, and the default fonts in Maple are too small for me to read.  I can enlarge the normal input and output using the View/Zoom Factor, and this works very well for me.  However, it seems to have no effect on the fonts in spreadsheets.

Can anyone tell my how to make the fonts in Maple spreadsheets larger?  I'm using Maple 18 on Windows 8.1. Thank you.