C # DataTable exportación a Excel

/// <summary> 
        /// DataTable导出到Excel 
        /// </ summary> 
        /// <param name = "dt"> DataTable </ param> 
        /// <param name = "array">首行数组</ param> 
        /// <param name = "fileFullName">文件名</ param> 
        public static void ExportToExcel (dt DataTable, string [] array, fileFullName string) 
        { 
            #region 
            XSSFWorkbook libro = new XSSFWorkbook (); 
            Fs FileStream = new FileStream (fileFullName, FileMode.OpenOrCreate, FileAccess.ReadWrite); 
            Hoja ISheet = workbook.CreateSheet ( "Sheet0"); 
            Fila IRow; 
            fila = sheet.CreateRow (0);
            
            { 
                Row.CreateCell (i) .SetCellValue (array [i]); 
            } 

            For (int i = 0; i <dt.Rows.Count; i ++) 
            { 
                fila = sheet.CreateRow (i + 1); 

                for (int j = 0; j <dt.Columns.Count; j ++) 
                { 
                    row.CreateCell (j) .SetCellValue (dt.Rows [i] [j] .ToString ()); 
                } 
            } 
            Workbook.Write (FS); //写入到Excel 

            #endregion 
            // MessageBox.Show ( "导出成功!"); 
        }