Conditional Formatting on the Format menu can do this. First, select
the cell whose color should change. Then, open the Conditional
Formatting dialog from the Format menu. There, change "Cell Value Is"
to "Formula Is" and enter something like the following in the formula
box:
=A1>10
Change that formula to return TRUE or FALSE, indicating whether the
format should be applied. Then click the Format button and choose the
Pattern tab. Select the color to fill the cell. Click OK until you're
done. If the formula is TRUE (e.g., A1>10), the format you selected
will be applied to the cell. If the formula is FALSE, no format (other
than the cell's default format) will be applied to the cell.
Cordially,
Chip Pearson
Microsoft Most Valuable Professional
Excel Product Group, 1998 - 2009
Pearson Software Consulting, LLC
www.cpearson.com
(email on web site)