Ranking

please can some one help me with a rank formula if have data like 5,8,9,1,3,0 from column A1 to A6.i want the rank to appear in B1 then i Will autofill the rest but the ranks should be in this format (1st,2nd,3rd.....) not 123... and if a cell is empty,its rank should be excluded and appears empty too.help me with a formula pls.thanks in advance