Hi guys,
I am new to using excel. so here's what I'm trying to do:
Some US zip codes have 9 digits and I want to a Hyphen "-" after the first 5 digits in a column. However, the same column also includes 5 digit ones so I am trying to use =IF(LEN(a2)>5,(REPLACE(a2,6,0,"-"))) but I can't seem to...