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. By default, these grid lines use ...

Click "Insert" in Excel's menu bar. Click "Line" in the Ribbon's Charts tab. A drop-down menu opens. Click the first option from the menu. Tooltip text, when you highlight this option, reads, "Line.

How to create the combo chart Right now, the line chart doesn’t display the Emphasis series — the value $1,800,000 — as a vertical bar. It’s a round marker.