ChartArea Object (Excel)
Represents the chart area of a chart.
Remarks
The chart area includes everything, including the plot area. However, the plot area has its own fill, so filling the plot area does not fill the chart area.
For information about formatting the plot area, see PlotArea Object.
Use the ChartArea property to return the ChartArea object.
Example
The following example turns off the border for the chart area in embedded chart 1 on the worksheet named "Sheet1."
Worksheets("Sheet1").ChartObjects(1).Chart. _
ChartArea.Format.Line.Visible = False