How to change fill color of a cell in MS Excel 2010?

i need to change color of a cell in excel 2010 by function. a person who has low score be "Red" for exam开发者_JS百科ple.

Here are the steps to use conditional formatting (using Excel 2007/2010):

• Select the cells you want to apply the formatting to
• Click on Conditional Formatting on the ribbon
• Go to Highlight Cell Rules
• Select "Less than..."
• Enter the number you want and choose a 'fill' you want

Hint: Don't highlight the entire column of cells and apply the conditional formatting to it - it will hurt performance. Just highlight the cells you really need to apply it to.