Select just the cells you want to resize and you can either do 1)
Format => Row => Height or Column => Width or 2) Drag one of the
highlighted rows or columns to resize and the rest will follow.
I'm sorry, I wasn't very clear. I need to resize only a certain section
cells about half way down the page, but when I try to resize the ways you've
suggested, it only allows to resize the entire column or entire row.