public static void DataTabletoExcel(System.Data.DataTable tmpDataTable, string strFileName) { if (tmpDataTable == null ) return; int rowNum = tmpDataTable.Rows.Count; int columnNum = tmpDataTable.Columns.Count; int rowIndex = 1; int columnIndex = 0; Microsoft.Office.Interop.Excel. Application xlApp = new Microsoft.Office.Interop.Excel.Application(); xlApp.DefaultFilePath = ""; xlApp.DisplayAlerts = true; xlApp.SheetsInNewWorkbook = 1; Workbook xlBook = xlApp.Workbooks.Add(true ); //将DataTable的列名导入Excel表第一行 foreach (DataColumn dc in tmpDataTable.Columns) { columnIndex++; xlApp.Cells[rowIndex, columnIndex] = dc.ColumnName; } //将DataTable中的数据导入Excel中 for (int i = 0; i < rowNum; i++) { rowIndex++; columnIndex = 0; for (int j = 0; j < columnNum; j++) { columnIndex++; xlApp.Cells[rowIndex, columnIndex] = tmpDataTable.Rows[i][j].ToString(); } } //xlBook.SaveCopyAs(HttpUtility.UrlDecode(strFileName, System.Text.Encoding.UTF8)); //xlBook.SaveCopyAs(strFileName); }