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Select a 2-D column, 2-D Line, Bubble, Scatter, or Combo chart.
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Double click the chart to open the Chart pane, and select Format.
If you don't see Format, select an element in the chart. -
Expand a Series for your data and select Trendline
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Select a 2-D column, 2-D Line, Bubble, Scatter, or Combo chart.
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On the Chart Design tab, select
