// Create a new workbook Workbook workbook = new Workbook(); Object data = new Object[][]{ {"Name", "City", "Birthday", "Eye color", "Weight", "Height"}, {"Richard", "New York", new GregorianCalendar(1968, 5, 8), "Blue", 67, 165}, {"Nia", "New York", new GregorianCalendar(1972, 6, 3), "Brown", 62, 134}, {"Jared", "New York", new GregorianCalendar(1964, 2, 2), "Hazel", 72, 180}, {"Natalie", "Washington", new GregorianCalendar(1972, 7, 8), "Blue", 66, 163}, {"Damon", "Washington", new GregorianCalendar(1986, 1, 2), "Hazel", 76, 176}, {"Angela", "Washington", new GregorianCalendar(1993, 1, 15), "Brown", 68, 145} }; IWorksheet worksheet = workbook.getWorksheets().get(0); worksheet.getRange("A1:F7").setValue(data); worksheet.getRange("A:F").setColumnWidth(15); // add table. worksheet.getTables().add(worksheet.getRange("A1:F7"), true); // "Name" column's total row calculation function will be // "=SUBTOTAL(103,[Name])" worksheet.getTables().get(0).getColumns().get(0).setTotalsCalculation(TotalsCalculation.Count); // "Weight" column's total row calculation function will be // "=SUBTOTAL(101,[Weight])" worksheet.getTables().get(0).getColumns().get(4).setTotalsCalculation(TotalsCalculation.Average); worksheet.getTables().get(0).setShowTotals(true); // Save to an excel file workbook.save("PerformCalculationsInTable.xlsx");