You haven't said what you want them sorted descending by. Descending order by property value? Descending order by acreage? Descending order by zip code?
Once you figure that out the rest is easy. First sort, selecting the file that matches what you want the the descending order by, once it is in the list at the right, select it and then choose the 'descending' option at the bottom of the dialog.
Then set yourself up a script that goes like this
show all records
sort
omit multiple (set for ten records, without dialog)
show omitted
The sort order that you created before the script gets saved with the script, so every time you run the script it will give you the top ten.
