public void ThenICanWriteToExcel()
        {
            ExcelInteropHelper.WriteExcel(1, 9, "test");
            //ExcelInteropHelper.SaveExcel();

            // 1. Single values
            ExcelInteropHelper.WriteExcel("I2", "test1");
            //ExcelInteropHelper.CloseExcel();

            // 2. Multidimentional Arrays
            string[,] rangeValues = new string[3, 3] {
                { "a", "b", "c" },
                { "d", "e", "f" },
                { "g", "h", "i" }
            };

            ExcelInteropHelper.WriteExcel("I3:K5", rangeValues);
            //ExcelInteropHelper.CloseExcel();

            // When values are of dynamic range, mention start cell only
            ExcelInteropHelper.WriteExcel("I6", rangeValues);

            rangeValues = new string[3, 1] {
                { "a" },
                { "d" },
                { "g" }
            };
            // When values are of dynamic range, mention start cell only
            ExcelInteropHelper.WriteExcel("I9", rangeValues);

            // 3. One dimensional array (single column)
            string[] rangeValues1 = new string[3] {
                "a", "b", "c"
            };
            ExcelInteropHelper.WriteExcel("I12", rangeValues1);

            // Always use CloseExcel at end of all oprations
            ExcelInteropHelper.CloseExcel();
        }