From 0.8.9.0, ReoGrid supports that chart components displayed on worksheet, as well as saving into or loading from an Excel file.
Line Chart
See Line Chart.
Column Chart 
See Column Chart.
Bar Chart 
See Bar Chart.
Area Chart 
See Area Chart.
Pie Chart 
Pie 2D Chart
See Pie 2D Chart.
Doughnut Chart 
See Doughnut Chart.
See Also
Next: Rich format text display