1 public class ExcelOperator 2 { 3 public static List<DataTable> Read(string fileName) 4 { 5 List<DataTable> tables = new List<DataTable>(); 6 if (!File.Exists(fileName)) 7 return tables; 8 var fs = new FileStream(fileName, FileMode.Open, FileAccess.Read); 9 IWorkbook workbook = null; 10 if (fileName.IndexOf(".xlsx") > 0) 11 { 12 // 2007版本 13 workbook = new XSSFWorkbook(fs); 14 } 15 else if (fileName.IndexOf(".xls") > 0) 16 { 17 // 2003版本 18 workbook = new HSSFWorkbook(fs); 19 } 20 21 var workbooks = workbook.GetEnumerator(); 22 while (workbooks.MoveNext()) 23 { 24 ISheet sheet = workbooks.Current as ISheet; 25 DataTable dt = new DataTable(sheet.SheetName); 26 var rows = sheet.GetRowEnumerator(); 27 while (rows.MoveNext()) 28 { 29 IRow row = rows.Current as IRow; 30 if (row.RowNum == 0) 31 { 32 row.Cells.ForEach(cell => 33 { 34 dt.Columns.Add(cell.StringCellValue); 35 }); 36 } 37 else 38 { 39 var dr = dt.NewRow(); 40 for (int i = 0; i < row.Cells.Count; i++) 41 { 42 dr[i] = row.Cells[i].ToString(); 43 } 44 dt.Rows.Add(dr); 45 } 46 } 47 48 tables.Add(dt); 49 } 50 return tables; 51 } 52 } 
