To use the Sort option for this case you'll have to prepare your table: create a helper column/row, enumerate each cell according to a row/column number, select this additional range and the one you want to reverse, sort by helper range Largest to Smallest, and then delete the additional column/row. The task becomes more peculiar when you need to flip a part of a row or a column.
With Flip Range you just select the range of interest and click Flip.