String sConnectionString = 
            "Provider=Microsoft.Jet.OLEDB.4.0;" +
            @"Data Source=C:\language.xls;" + 
            "Extended Properties=Excel 8.0;"; 

            OleDbConnection objConn = new OleDbConnection(sConnectionString);

            objConn.Open();

            OleDbCommand objCmdSelect = new OleDbCommand("SELECT * FROM [Sheet1$]", objConn);
            OleDbDataReader reader = objCmdSelect.ExecuteReader();


            //---
            String myConnectionString = "server=192.168.168.6;uid=xxxx;pwd=xxxxx;database=xxxxxxx_db;";
            MySqlConnection myConnection = new MySqlConnection(myConnectionString);
             
 while (reader.Read())
             {

*this is where I generate my sql query
}