In Excel 2003, I have a row of 15 numbers and some of the cells in the row
have a 'gray' color-fill. I want to 'sum' only those numbers in the row
whose cell color-fill is 'gray'. It doesn't seem that SUMIF has a criteria
that can be selective by cell color-fill. Is there any easy way to sum
numbers in a row or column according to a cell color-fill criteria?