DATEDIF(A1; A2; "m") A1 is "1st of January 1995" and A2 is "15th of June 1999" returns number of months 53
DATEDIF( A1; A2; "m"), sendo A1 o "1 de xaneiro de 1995" e A2 o "15 de xuño de 1999", devolve 53 meses