-align:left;"> exercise </td>
   <td style="text-align:left;"> read_csv(
  another_csv,
  col_types = cols_only(x = col_character())
) </td>
  </tr>
  <tr>
   <td style="text-align:left;"> controlling-column-types-9 </td>
   <td style="text-align:left;"> exercise </td>
   <td style="text-align:left;"> read_csv("data/ex_2.csv") </td>
  </tr>
  <tr>
   <td style="text-align:left;"> controlling-column-types-10 </td>
   <td style="text-align:left;"> exercise </td>
   <td style="text-align:left;"> 