To show a description of the data on the chart, check the Show Legend check box. This legend
is the label entered in the Label field on the Value tab of the Chart Value dialog.
To choose whether to show legends in a column, row or in tabular
format, click the appropriate radio button.
In the
Position field, from the
drop-down list, select where you would like the legend to be displayed on the
chart.
To specify a style for the legend, use the Legend Style button to open the
Style Properties dialog where you can select formats for the
legend's font, border, line and background.