I have a project in which I am to read an excel spreadsheet.  I am to keeping a count of how many cells are colored red, yellow or green in a column.  For example, if a column that have 10 rows with 4 green, 2 red, and 4 yellow. By using PHPExcel, I can keep a count of which cell is red, yellow, or green. 

Is this using conditional formatting? or simply standard cell formatting?

MarkBaker wrote:

Is this using conditional formatting? or simply standard cell formatting?

It is both conditional and standard cell formatting as there will be multiple worksheet involved.