Without writing your own function to do it the standard workaround is to
add another column beside your data numbered 1 to the length of your
data ,select both columns and sort on the second column descending to
reverse the order of the first column.
Select one of the cells in the column and then click on Data and then Sort.
There is also an icon on the toolbar which will do this for you. This will
sort A-Z or 1-9 or the reverse.