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There may be situations where it's valuable to show all the data values along with the plotted data points. However, you've already seen how data labels can inundate your users with chart junk.
Instead of using data labels, you can attach a data table to your Excel chart. A data table allows you to see the data values for each plotted data point, beneath the chart. Figure 14-6 illustrates a data table, showing the data values for two series. As you can see, a lot of information is shown here without overcrowding the chart itself.