Thanks Chris CA.
Select everything in the list.
Go to menu Format > Table > Convert text to table
Select all cells
Go to the Inspector.
Select Table icon (7th across the top)
Under the Table tab, click the gear after Edit Rows & Columns drop down and select Sort Ascending (or Descending)
Go to menu Format > Table > Convert table to text
Or it is in the Services menu also. (just saw that)