ERROR 1004 when trying to use FormulaArray. Replace trick does not work

Question

BACKGROUND: I got a cool Array Formula and it works perfect in Excel. Now I\'m trying to do the same formula, but with VBA. So I typed the Array Formula in

Answer 1

I'd bet your Excel is not set to use R1C1 referencing, so the replace won't work as you're trying to put an R1C1 referenced string into an A1 style formula. Try using:

Application.ReferenceStyle = xlR1C1
With ActiveSheet.Range("F2")
        .FormulaArray = theFormulaPart1
        .Replace MiReemplazo, theFormulaPart2
    End With
Application.ReferenceStyle = xlA1