The first column in a Spotlight grid may show data as a simple text string or (if available) a hierarchical tree structure. If the data can be shown in both formats, you can choose which view to use.
To show or hide trees in tables
Toggle tree view on/off
The images below show the same first column of a table in the two different formats.
Note: When you sort a table in tree view, the table is sorted first according to the highest level in the tree; the individual branches and sub-branches of the tree are sorted separately in the same order. For more information, see Sort the grid.
[This example is shown in ascending order.]