C#：使用 OleDb 读取 Excel 数据

 /// 读取Excel文件
 /// filePath:Excel工作薄名称（包括路径）
 /// sheetName:Sheet表名称
private static DataTable GetExcelData(string filePath, string sheetName)
 {
 string strCon = string.Empty;
 //根据文件格式设置不同的连接字符串
 if (Path.GetExtension(filePath) == ".xls")//Excel 2003
 {
 strCon = "Provider=Microsoft.Jet.OleDb.4.0; Data Source=" + filePath + ";Extended Properties='Excel 8.0; HDR=YES; IMEX=1'";
 }
 else if (Path.GetExtension(filePath) == ".xlsx")//Excel 2007及以上
 {
 strCon = "Provider=Microsoft.Ace.OleDb.12.0; Data Source=" + filePath + ";Extended Properties='Excel 12.0; HDR=YES; IMEX=1'";
 }
 try
 {
 OleDbConnection myConn = new OleDbConnection(strCon);
 string strCom = string.Format(" SELECT * FROM [{0}$]", sheetName);
 myConn.Open();
 OleDbDataAdapter myCommand = new OleDbDataAdapter(strCom, myConn);
 DataSet ds = new DataSet();
 myCommand.Fill(ds, "[" + sheetName + "]");
 myConn.Close();
 myConn.Dispose();
 DataTable dt;
 dt = ds.Tables[0];
 return dt;
 }
 catch (Exception err)
 {
 Console.WriteLine(err);
 return null;
 }
 }