If you want to make your charts easy to interpret, insert a trendline or moving average line in Excel worksheet. See the list of steps to get it done in no time!

One way to assess this fluctuating data is to add a linear trend line to the Excel 2013 graph. This visual element considers all the data and displays the overall direction the values are taking.

Here is my dilemma. I am trying to help a friend add a trendline to an existing graph and control the length of the trendline itself. The graph tracks scores over a date range. The problem is that ...