NPOI兼容 excel2003，2007版本

 1 public int Import(string path)
 2         {
 3              IList<Student> list = new List<Student>();
 4 
 5             try
 6             {
 7                 string strFileName = path;
 8                 using (FileStream file = new FileStream(strFileName, FileMode.Open, FileAccess.Read))
 9                 {
10 
11                     IWorkbook workbook = WorkbookFactory.Create(file);////使用接口，自动识别excel2003/2007格式主要就是这句话
12                     
13                         //获取所有的工作簿
14                         for (int i = 0; i < workbook.NumberOfSheets; i++)
15                         {
16                             //获取所有的工作表
17                             ISheet st = workbook.GetSheetAt(i);
18                             
19                                 //读取每一行
20                                 for (int k = 1; k < st.LastRowNum + 1; k++)
21                                 {
22                                     //获取当前行
23                                     IRow r = st.GetRow(k);
24 
25                                     if (r != null)
26                                     {
27 
28                                         if (r.GetCell(0) != null)
29                                         {
30                                             //if (r.GetCell(0).ToString().Length == 8)//验证考号是不是9位
31                                             //{
32                                             MarkingSchool.Model.Student stu = new MarkingSchool.Model.Student();
33                                             if (r.GetCell(0) != null)
34                                             {
35                                                 stu.studentCode = r.GetCell(0).ToString();
36                                             }
37                                             if (r.GetCell(1) != null)
38                                             {
39                                                 stu.studentName = r.GetCell(1).ToString();
40 
41                                             }
42                                             if (r.GetCell(2) != null) stu.schoolCode = r.GetCell(2).ToString();
43                                             if (r.GetCell(3) != null) stu.gradeCode = r.GetCell(3).ToString();
44                                             if (r.GetCell(4) != null) stu.classesCode = r.GetCell(4).ToString();
45 
46                                             if (r.GetCell(5) != null) stu.period = r.GetCell(5).ToString();
47                                             if (r.GetCell(6) != null) stu.nationChineseIdentifyCode = r.GetCell(6).ToString();
48                                             if (r.GetCell(7) != null) stu.scienceOrArtIdentifyCode = r.GetCell(7).ToString();
49 
50                                             list.Add(stu);
51                                             //}
52                                         }
53 
54                                     }
55                                 }
56 
57                             
58                         }
59                     
60                 }