C# 读取Excel模板 修改某行某列的值 另存为新的Excel

需引用
using Microsoft.Office.Interop.Excel;
 1  protected Application objExcelApp;//定义Excel Application对象
 2  private Workbooks objExcelWorkBooks;//定义Workbook工作簿集合对象
 3  protected Workbook objExcelWorkbook;//定义Excel workbook工作簿对象
 4  private Worksheet objExcelWorkSheet;//定义Workbook工作表对象
 5 
 6 
 7 
 8 
 9 try{
10  string workTmp = Server.MapPath("~/BJYH2014/QuarterReportExcel.xlsx");
11  objExcelApp = new ApplicationClass();
12  objExcelWorkBooks = objExcelApp.Workbooks;
13  objExcelWorkbook = objExcelWorkBooks.Open(workTmp, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
14 
15 
16  objExcelWorkSheet = (Worksheet)objExcelWorkbook.Worksheets[1]; //strSheetName是指的Exce工作簿的Sheet名，如果没有命名则为"1" 
17 
18                     objExcelWorkSheet.Cells[20, 2] = "100";//intRow,行；intCol;列；strValue，你处理完以后的值
19                     objExcelWorkSheet.Cells[20, 3] = "200";//intRow,行；intCol;列；strValue，你处理完以后的值
20                     objExcelWorkSheet.Cells[20, 4] = "300";//intRow,行；intCol;列；strValue，你处理完以后的值
21                     objExcelWorkSheet.Cells[20, 5] = "400";//intRow,行；intCol;列；strValue，你处理完以后的值
22                     objExcelWorkSheet.Cells[20, 6] = "500";//intRow,行；intCol;列；strValue，你处理完以后的值
23                     //object missing = System.Reflection.Missing.Value;
24                     string fileName = string.Format(Server.MapPath("~/BJYH2014/Excel/" + Session["deptname"].ToString() + "隐患排查情况统计表{0}.xlsx"), now.ToString("yyyy-MM-dd-HH-mm-ss"));
25 
26 
27                     objExcelWorkbook.SaveAs(fileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
28                 }
29                 finally
30                 {
31                     objExcelApp.Quit();
32                 }