Graphs in Microsoft Excel typically chart time on the horizontal axis. Time is the independent variable in most relationships and dependent variables appear on the vertical axis. Some charts ...

How to create conditional formatting rules in Excel Once the custom value formats exist, you can apply them using conditional formatting rules. Right now, the format is set to General.

Microsoft Excel gives you a boatload of options for changing the format of color charts. You can change the layout of a chart, then customize that layout to the format you prefer.