Delete Rows if a value in column A appears only once

[randell.graybill]

Hi I was wondering if it is possible to delete rows if a value appears only 1 time in a column? To clarify since 123 only appears once in column A I want the entire row 4 deleted. Is this possible?

Sample Set of Data

Item #	   Description	                             Cs/Cnt   Exp Date   P. S.	P. E. 
64	         DEF                                     15   4/27/2009	  23	 23
64	         DEF                                     15   5/3/2009	  38	 38
64	         DEF                                     15   5/4/2009	  12	 12
123	         abc	                                  1    6/4/2009	  22     22