title: Import data from excel into DataGridview with specific condition
body: <p>This is how i am import my <code>Excel</code> file:</p>
  
  <pre><code>stirng file = "c:\myFile.xlsx";
  DataGridView dgvIM;
  
  private void Import()
          {
              String name = "Items";
              String constr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" +
                              file +
                              ";Extended Properties='Excel 8.0;HDR=YES;';";
  
              OleDbConnection con = new OleDbConnection(constr);
              OleDbCommand oconn = new OleDbCommand("Select * From [" + name + "$]", con);
              con.Open();
  
              OleDbDataAdapter sda = new OleDbDataAdapter(oconn);
              System.Data.DataTable data = new System.Data.DataTable();
              sda.Fill(data);
              dgvIM.DataSource = data;
          }
  </code></pre>
  
  <p>What i want to do is import my Excel file but with specific condition, my second column contain several groups of strings ("First", "Second" etc..) and i want to add only the column with name "First" and not the whole list.</p>
  
  <p>How can i do that ?</p>