excel的操作，最常用的就是導出和導入，廢話不多說上代碼。

本例使用NPOI實現的，不喜勿噴哈。。。。

代碼如下:
/// <summary>
        /// 導出Excel
        /// </summary>
        /// <param name="stime"></param>
        /// <param name="etime"></param>
        /// <returns></returns>
        public ActionResult Export(FormCollection frm)
        {
            DataTable dts = new DataTable();
            dts = _shopMemeber.ExportMemberData(frm);
            IWorkbook workbook = new XSSFWorkbook();
            ISheet sheet = workbook.CreateSheet();
            IRow headerRow = sheet.CreateRow(0);
            foreach (DataColumn column in dts.Columns)
                headerRow.CreateCell(column.Ordinal).SetCellValue(column.Caption);
            int rowIndex = 1;
            foreach (DataRow row in dts.Rows)
            {
                IRow dataRow = sheet.CreateRow(rowIndex);
                foreach (DataColumn column in dts.Columns)
                {
                    dataRow.CreateCell(column.Ordinal).SetCellValue(row[column].ToString());
                }
                rowIndex++;
            }
            string filepath = Server.MapPath("/") + @"用戶列表.xlsx";
            FileStream file = new FileStream(filepath, FileMode.Create);
            workbook.Write(file);
            ExcelHelper.DownLoad(@"/用戶列表.xlsx");