Create a chart from start to finish - Microsoft Support
https://support.microsoft.com/en-us/office/create-a-chart-from-start-to-finish-0baf399e-dd61-4e18-8a73-b3fd5d5680c2
WebSelect a chart. Select Design > Add Chart Element. Select Trendline and then select the type of trendline you want, such as Linear, Exponential, Linear Forecast, or Moving Average. For this chart type. Arrange the data. Area, bar, …
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