Send excel file mail from C folder under name of Datadump folder 2 excel file

My code as follows

public void Getfunction(int j)
{
string connectionstring = "Server=(local);initial catalog=Test;Trusted_Connection=True";
SqlConnection sqlConnection = new SqlConnection(connectionstring);
SqlCommand cmd = new SqlCommand();
SqlDataReader reader;
DataSet ds = new DataSet();
cmd.CommandText = "select * from Empdetails";
cmd.CommandText += " where shifttype = @par ";
cmd.Parameters.Add("@par", SqlDbType.Int).Value = j;
cmd.CommandType = CommandType.Text;
cmd.Connection = sqlConnection;
sqlConnection.Open();
reader = cmd.ExecuteReader();

if (reader.HasRows)
{
System.IO.StreamWriter sw_In = new System.IO.StreamWriter(@"C:\Users\God\Desktop\DataDump\" + j + "Excel.xls");
while (reader.Read())
{
for (int i = 0; i < reader.FieldCount; i++)
{
sw_In.AutoFlush = true;
sw_In.Write(reader[i].ToString() + "\t");
}
sw_In.Write("\n");
}

}
sqlConnection.Close();
reader.Close();
}

static void Main(string[] args)
{

Program ps = new Program();
int[] numbers = { 1, 2 };
foreach (int j in numbers)
{
ps.Getfunction(j);
System.Console.Write("{0} ", j);
}
}

When i run the above code in Desktop under datadump folder 2 excel has been downloaded
in the name of 1Excel, 2Excel.

i want to send the above two excel to mail

1EXcel to send mail to rajesh@gmail.con
2Excel to send mail to Vikash@gmail.com

for that how can i send the above 2 excel to two different persons send mail in c#