Extra|Sort Alphanumerically Z-A, 9-0 works just like Extra|Sort Alphanumerically 0-9, A-Z, except that the file or the selected text is sorted in reverse alphanumeric order.
When the text contains numbers that consist of multiple digits, the numbers are compared as a whole. So “A10” reverse sorts before “A4” because 10 is greater than 4.
Extra menu
Extra|Sort Alphabetically A-Z
Extra|Sort Alphabetically Z-A
Extra|Sort Alphanumerically 0-9, A-Z