输出excel的问题

[cloudgamer]

        Response.Clear();
        Response.Buffer = true;
        Response.AppendHeader("Content-Disposition", "attachment;filename=Excel.xls");
        Response.ContentType = "application/vnd.ms-excel";

        this.EnableViewState = false;

        StringBuilder sb = new StringBuilder();

        sb.Append("id").Append("\t");
        sb.Append("原始网页标题").Append("\t");
        sb.Append("网站名称").Append("\t");
        sb.Append("网站url").Append("\t");
        sb.AppendLine("");

        GetData gd = new GetData();
        foreach (DataRow dr in dt.Rows)
        {
            sb.Append(dr["id"]).Append("\t");
            sb.Append(dr["title"]).Append("\t");
            sb.Append(dr["web"]).Append("\t");
            sb.Append(dr["url"]).Append("\t");
            sb.AppendLine("");
        }

        Response.Write(sb.ToString());
        Response.End();

这样生产的excel打开的时候总提示文件格式与扩展名格式不一致
但打开后内容是正确的
该怎么弄呢

[bingway]

private void btn_Pint_Click(object sender, EventArgs e)
{
string sql = "select * from PersonalTax";
string constr = "server=localhost;database=HanBan;uid=sa;pwd=123;";
SqlConnection con = new SqlConnection(constr);
SqlDataAdapter da = new SqlDataAdapter(sql, con);
string pathName = System.Windows.Forms.Application.StartupPath.Trim();
string dateTime = dateTimePicker1.Text.Split(char.Parse("-"))[0] + "年" + dateTimePicker1.Text.Split(char.Parse("-"))[1] + "月";
int columnCount = 0;

FileInfo mode = new FileInfo(pathName + "\\Personal.xls");
try
{
mode.CopyTo(pathName +"\\" + dateTime + " Personal.xls", true);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}

object missing = Type.Missing;
Excel.Application myExcel = new Excel.Application();
myExcel.Application.Workbooks.Open(pathName + dateTime + " Personal.xls", missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing);
myExcel.Visible = false;

Excel.Workbook myBook = myExcel.Workbooks[1];
Excel.Worksheet mySheet = (Excel.Worksheet)myBook.Worksheets[1];


try
{
if (ds.Tables.Contains("PersonalTax"))
{
ds.Tables["PersonalTax"].Clear();
}
da.Fill(ds, "PersonalTax");
columnCount = ds.Tables["PersonalTax"].Rows.Count;
for (int i = 0; i < columnCount; i++)
{
ds.Tables["PersonalTax"].Rows[i][6] = dateTime;
}
dataGridView1.DataSource = ds.Tables["PersonalTax"];

if (columnCount == 0)
{
MessageBox.Show("没有可打印的数据！", "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
else
{
myExcel.Cells[6,2] = dateTime;

for (int i = 0; i < columnCount/2; i++)
{
((Excel.Range)mySheet.Cells[i + 6, 1]).EntireRow.Insert(0, Excel.XlDirection.xlDown); //添加行
//(Excel.Range)mySheet.Rows[i + 6, 1].Insert(Excel.XlDirection.xlDown);

mySheet.Cells[i + 6, 1] = ds.Tables["PersonalTax"].Rows[i * 2 + 0][0].ToString();
mySheet.Cells[i + 6, 2] = ds.Tables["PersonalTax"].Rows[i * 2 + 0][1].ToString();
mySheet.Cells[i + 6, 3] = ds.Tables["PersonalTax"].Rows[i * 2 + 0][2].ToString();

mySheet.Cells[i + 6, 4] = ds.Tables["PersonalTax"].Rows[i * 2 + 1][0].ToString();
mySheet.Cells[i + 6, 5] = ds.Tables["PersonalTax"].Rows[i * 2 + 1][1].ToString();
mySheet.Cells[i + 6, 6] = ds.Tables["PersonalTax"].Rows[i * 2 + 1][2].ToString();
}
if (columnCount % 2 == 1)
{
((Excel.Range)myExcel.Cells[columnCount / 2 + 6, 1]).EntireRow.Insert(0, Excel.XlDirection.xlDown); //添加行

mySheet.Cells[columnCount / 2 + 6, 1] = ds.Tables["PersonalTax"].Rows[columnCount - 1][0].ToString();
mySheet.Cells[columnCount / 2 + 6, 2] = ds.Tables["PersonalTax"].Rows[columnCount - 1][1].ToString();
mySheet.Cells[columnCount / 2 + 6, 3] = ds.Tables["PersonalTax"].Rows[columnCount - 1][3].ToString();
}
}

if (columnCount % 2 == 1)
{
columnCount = columnCount % 2 + 1;
}
else
{
columnCount = columnCount % 2;
}
Excel.Range r = mySheet.get_Range(mySheet.Cells[6, 1], mySheet.Cells[5 + columnCount, 5]);
r.Select();
myExcel.Run("Macro1", missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing);
myBook.Save();
myExcel.Visible = true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "系统提示", MessageBoxButtons.OK, MessageBoxIcon.Error);
if (myBook != null)
{
myBook.Close(false, missing, missing);
}
myExcel.Workbooks.Close();
myExcel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject(myExcel);
}
finally
{
da.Dispose();
}
}

[cloudgamer]

好像没有解决我的问题啊

[cloudgamer]

用03打开就没有提示了
看来是07的安全性高导致的

[cloudgamer]

没人要分？