Can anyone tell how to color a Cell based on Condition in XML Spread sheet using Visualforce?

Hi All,

Hi,
I am using XML Spread sheet code in visual force page which generates Multisheets,there is a requirement i should put color for cell based on condition,For ex:if cell contains property 10% the put RED color,If it contains Property 20% then put BLUE color.But i din get the approach to put condition in Visualforce page.