How to add a trendline to a chart in Microsoft Excel

How to add a trendline to a chart in Microsoft Excel

1- Add a trendline

2- Select a chart.

3- Select the + to the top right of the chart.

4- Select Trendline. Note: Excel displays the Trendline option only if you select a chart that has more than one data series without selecting a data series.

5- In the Add Trendline dialog box, select any data series options you want, and click OK.