For example, you could show line graphs for temperature and humidity on top of each other. For this purpose, Excel lets you add a series of data to a chart and plot it on a second y-axis.

How to Bullet a Graph in Excel. Adding bullet points to the text in a Microsoft Excel graph or chart can help separate important information and make it stand out on the page. To add bullets in an ...

In Microsoft Excel, to draw attention to a specific marker in a line chart, drop in a thin line, think of it as a marker.