COUNTIF function - Microsoft Support
http://go.microsoft.com/fwlink/?LinkID=617350
WEBUse COUNTIF, one of the statistical functions, to count the number of cells that meet a criterion; for example, to count the number of times a particular city appears in a customer list. In its simplest form, COUNTIF says: =COUNTIF (Where do you want to look?, What do you want to look for?) For example: =COUNTIF (A2:A5,"London") =COUNTIF (A2:A5,A4)
DA: 61 PA: 100 MOZ Rank: 29