string _strCon = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\Book1.xls;Extended Properties=""Excel 8.0;HDR=Yes;IMEX=1""";
OleDbConnection _con = new OleDbConnection(_strCon);//@"E:\Book1.xls"
_con.Open();
string _strSelectCMD = "select * from [Sheet1$]";
OleDbDataAdapter _adapter = new OleDbDataAdapter(_strSelectCMD,_con);
DataSet _set = new DataSet();
_adapter.Fill(_set, "Sheet1");
DataTable _table = _set.Tables[0];
for (int i = 0; i < _table.Rows.Count; i++)
{
string _str1 = _table.Rows[i][0].ToString();
string _str2 = _table.Rows[i][1].ToString();
string _str3 = _table.Rows[i][2].ToString();
}
_con.Close();