How to view and change output columns 1 Choose Output Columns from the left pane of Edit Data Set. Output Columns displays the names and types of the columns, as shown in Figure 3-6. Figure 3-6 Viewing the output columns for a data set 2 To edit the properties of an output column, select the column name, then choose Edit. Edit Output Column displays the properties you can set. 3 Choose OK to save the edits.