Currently, RadSpreadProcessing supports the following options:
namespace Telerik.Windows.Documents.Model.Drawing.Charts
{
/// <summary>
/// Specifies where a chart legend is placed relative to the plot area.
/// </summary>
public enum LegendPosition
{
/// <summary>
/// Positions the legend to the right of the plot area.
/// </summary>
Right,
/// <summary>
/// Positions the legend below the plot area.
/// </summary>
Bottom,
/// <summary>
/// Positions the legend to the left of the plot area.
/// </summary>
Left,
/// <summary>
/// Positions the legend above the plot area.
/// </summary>
Top
}
}MS Excel supports setting "Top Right" Legend Position: