C#使用Aspose.Cells导出Excel简单实现

首先，需要添加引用Aspose.Cells.dll，官网下载地址：http://downloads.aspose.com/cells/net

将DataTable导出Xlsx格式的文件下载（网页输出）：

/// <summary>
/// 导出Excel表格
/// </summary>
/// <param name="list">数据集合</param>
/// <param name="header">数据表头</param>
/// <returns></returns>
public void ExportExcel(DataTable dt, string[] header)
{
    Workbook wb = new Workbook(FileFormatType.Xlsx);
    try
    {
        Worksheet sheet = wb.Worksheets[0];
        sheet.Name = "MO上行查询结果";
        if (dt.Rows.Count <= 0)
        {
            System.Web.HttpContext.Current.Response.Write("<script>alert('没有检测到需要导出数据!');</script>");
            return;
        }
        // 为单元格添加样式
        Aspose.Cells.Style style = wb.CreateStyle();
        style.HorizontalAlignment = Aspose.Cells.TextAlignmentType.Center;  //设置居中
        style.Font.Size = 12;//文字大小
        style.Font.IsBold = true;//粗体
        style.HorizontalAlignment = TextAlignmentType.Center;//文字居中

        int rowIndex = 0;
        for (int i = 0; i < header.Length; i++)
        {
            sheet.Cells[rowIndex, i].PutValue(header[i]);
            sheet.Cells[rowIndex, i].SetStyle(style);
            sheet.Cells.SetColumnWidth(i, 20);//设置宽度
        }
        for (int i = 0; i < dt.Rows.Count; i++)//遍历DataTable行
        {
            sheet.Cells[i + 1, 0].PutValue(dt.Rows[i]["SENDER"].ToString());
            sheet.Cells[i + 1, 1].PutValue(dt.Rows[i]["SENDCONTENT"].ToString());
            sheet.Cells[i + 1, 2].PutValue("");
            sheet.Cells[i + 1, 3].PutValue(dt.Rows[i]["RECDATE"].ToString());
            sheet.Cells[i + 1, 4].PutValue(dt.Rows[i]["sn"].ToString());
        }
    }
    catch (Exception e)
    {
        System.Web.HttpContext.Current.Response.Write("<script>alert('导出异常:" + e.Message + "!');</script>");
    }
    #region 输出到Excel
    using (MemoryStream ms = new MemoryStream())
    {

        wb.Save(ms, new OoxmlSaveOptions(SaveFormat.Xlsx));//默认支持xls版，需要修改指定版本
        System.Web.HttpContext.Current.Response.AddHeader("Content-Disposition", string.Format("attachment; filename={0}.xlsx", DateTime.Now.ToString("yyyyMMddHHmmssfff")));
        System.Web.HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";
        System.Web.HttpContext.Current.Response.BinaryWrite(ms.ToArray());
        wb = null;
        System.Web.HttpContext.Current.Response.End();
    }
    #endregion
}

Aspose.Cells.dll 下载地址：http://pan.baidu.com/s/1o8TRXDg

其它相关参考：

https://my.oschina.net/u/876556/blog/98801

http://www.cnblogs.com/top5/archive/2010/02/16/1668801.html

http://www.cnblogs.com/springyangwc/archive/2011/08/12/2136498.html