How to Change Grid Line Colors on a Chart With Microsoft Excel. Grid lines add horizontal and/or vertical lines to your graph that aid in measuring graph values.

In Excel, users can add predefined layouts and styles to format their charts quickly. In this tutorial, we will explain how to apply layouts and styles to your chart in Microsoft Excel .

Click one of the charts in the Insert ribbon. For example, click "Column" and click the first thumbnail in the drop-down menu. Excel inserts a chart that does not yet track your data correctly.