// Create a new workbook Workbook workbook = new Workbook(); IWorksheet worksheet = workbook.getWorksheets().get(0); IShape shape = worksheet.getShapes().addChart(ChartType.ColumnClustered, 250, 20, 360, 230); worksheet.getRange("A1:D6").setValue(new Object[][]{ {null, "S1", "S2", "S3"}, {"Item1", 10, 25, 25}, {"Item2", -51, -36, 27}, {"Item3", 52, -85, -30}, {"Item4", 22, 65, 65}, {"Item5", 23, 69, 69} }); //Add series shape.getChart().getSeriesCollection().add(worksheet.getRange("A1:D6"), RowCol.Columns, true, true); ISeries series1 = shape.getChart().getSeriesCollection().get(0); ISeries series2 = shape.getChart().getSeriesCollection().get(1); //change series2's chart type. series2.setChartType(ChartType.Line); series2.getFormat().getLine().setWeight(2); // Save to an excel file workbook.save("ChangeSeriesType.xlsx");