ASP.NET 利用 Microsoft.Office.Interop.Excel 版本导出Excel数据

/*可能回由于office版本问题造成异常*/

protected void ExportExcel(System.Data.DataTable dt,string fileName)

{
　if (dt == null || dt.Rows.Count == 0) return;
    Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
    if (xlApp == null)
    {
        return;
    }
    System.Globalization.CultureInfo CurrentCI = System.Threading.Thread.CurrentThread.CurrentCulture;
    System.Threading.Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("en-US");
    Microsoft.Office.Interop.Excel.Workbooks workbooks = xlApp.Workbooks;
    Microsoft.Office.Interop.Excel.Workbook workbook = workbooks.Add(Microsoft.Office.Interop.Excel.XlWBATemplate.xlWBATWorksheet);
    Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
    Microsoft.Office.Interop.Excel.Range range;
    long totalCount = dt.Rows.Count;
    long rowRead = 0;
    float percent = 0;
    for (int i = 0; i < dt.Columns.Count; i++)
    {
        worksheet.Cells[1, i + 1] = dt.Columns[i].ColumnName;
        range = (Microsoft.Office.Interop.Excel.Range)worksheet.Cells[1, i + 1];
        range.Interior.ColorIndex = 15; range.Font.Bold = true;
    }
    for (int r = 0; r < dt.Rows.Count; r++)
    {
        for (int i = 0; i < dt.Columns.Count; i++)
        {
            worksheet.Cells[r + 2, i + 1] = dt.Rows[r][i].ToString();
        }
        rowRead++; percent = ((float)(100 * rowRead)) / totalCount;
    }
          
    workbook.SaveAs(fileName);
    xlApp.Visible = false;

    xlApp.Workbooks.Close();
    xlApp.Quit();
    //zxpGCCollect.ReleaseComObject(xls); /* 这里是我的一个资源回收的方法，具体请看下面 */
    GC.Collect();

}