添加引用 com组件（mso2003是11.0 mso2007应该是12）
Microsoft Office 11.0 Object Library
Microsoft Excel 11.0 Object Library
名字空间
using Microsoft.Office.Core;
using Microsoft.Office.Interop.Excel;
声明变量
1 private ApplicationClass m_App;
2 public Workbook m_Wb;
进程（对应Excel.exe）和工作簿（对于*.xls文件）
1 m_App = new ApplicationClass();
2 // m_App.Visible = true;
3 m_Wb = m_App.Workbooks.Open(filePath,
4 Type.Missing, Type.Missing, Type.Missing, Type.Missing,
5 Type.Missing, Type.Missing, Type.Missing, Type.Missing,
6 Type.Missing, Type.Missing, Type.Missing, Type.Missing,
7 Type.Missing, Type.Missing);
关闭工作簿和进程
1 m_App.Workbooks.Close();
2 if(m_Wb != null)
3 System.Runtime.InteropServices.Marshal.ReleaseComObject(m_Wb);
4
5 m_App.Quit();
6 if(m_Wb != null)
7 System.Runtime.InteropServices.Marshal.ReleaseComObject(m_App);
8 GC.Collect();
获取Sheet
1 string absFilePath="";
2 XlsMan xls = null;
3 if(FileUpload1.HasFile){
4 try
5 {
6 absFilePath = Server.MapPath("xlsFiles\\") + Session["sguid"] + ".xls";
7 FileUpload1.SaveAs(absFilePath);
8
9 tb.Text += FileUpload1.PostedFile.FileName + "\n";
10 tb.Text += "数据量：" + FileUpload1.PostedFile.ContentLength + "kb\n";
11 tb.Text += "类型：" + FileUpload1.PostedFile.ContentType + "\n";
12
13 xls = new XlsMan();
14 xls.Init(absFilePath);
15 Worksheet ws;
16 ddlSheet.Items.Clear();
17 for(int n = 1; n <= xls.m_Wb.Sheets.Count; n++){
18 ws = (Worksheet)xls.m_Wb.Sheets[n];
19 ddlSheet.Items.Add(new ListItem("工作表：" + ws.Name, ws.Name));
20 }
21 }
22 catch(Exception ex)
23 {
24 tb.Text += "ERROR: " + ex.Message.ToString() + "\n";
25 }
26 finally
27 {
28 if (xls != null)
29 xls.Close();
30 }
31 }
获取内容
1 XlsMan xls = null;
2 try
3 {
4 string absFilePath = Server.MapPath("xlsFiles\\") + Session["sguid"] + ".xls";
5 xls = new XlsMan();
6 xls.Init(absFilePath);
7 Worksheet ws = (Worksheet)xls.m_Wb.Sheets[ddlSheet.SelectedValue];
8 int m, n;
9 tb.Text += "--- Content: " + ws.Name + " ---\n";
10 for (m = 1; m <= 3; m++)
11 {
12 for (n = 1; n <= 3; n++)
13 {
14 Range cell = (Range)ws.Cells[m, n];
15 tb.Text += cell.Value2 + " ";
16 }
17 tb.Text += "\n";
18 }
19 }
20 catch (Exception ex)
21 {
22 tb.Text += "ERROR: " + ex.Message.ToString() + "\n";
23 }
24 finally
25 {
26 if(xls != null)
27 xls.Close();
28 }
如果是ASP.NET
管理工具 组件服务 计算机 我的电脑 DCOM配置 Microsoft Excel应用程序（右键属性） 安全（访问权限和启动激活权限加入Network Service的本地启动激活权限） 标识（交互式用户）
如果IIS建立
加入NETWORK SERVICE的修改权限(因为目录需要上传文件用户需要读写服务器硬盘资源)