Excel | How to change the dots on the line graph?

Excel Tutorials: http://www.lynda.com/Excel-training-tutorials/192-0.html?utm_medium=ldc-partner&utm_source=SSPRC&utm_content=10826&utm_campaign=CD2793&bid=10826&aid=CD2793 Right click on the data series, choose "Format Data Series" and go under "Marker Options" menu from the left. Under Marker Type select whether you want the markers to be Automatic, None or Built-in. "Automatic" comes with the chart type, "None" obviously means that no markers are used and "Built-in" enables you to select from the down appearing menu the more suitable marker. Under "Size" you can determine the size of the marker as well.