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Convertir Numeros a Letras en Exel (Argentina)
abris un exel, vas a herramientas, macro, macros. Donde dice nombre de la macro, pones n1 y despues hacé click en crear.
Te va a abrir un VisualBasic. Justo donde está el cursor, pegá lo siguiente:

Public Function NL(ByVal Numero As Double) As String
Dim NumTmp As String
Dim c01 As Integer
Dim c02 As Integer
Dim pos As IntegerDim dig As Integer
Dim cen As Integer
Dim dec As Integer
Dim uni As Integer
Dim letra1 As String
Dim letra2 As String
Dim letra3 As String
Dim Leyenda As String
Dim Leyenda1 As StringDim TFNumero As String
If Numero < 0 Then Numero = Abs(Numero)
NumTmp = Format(Numero, "000000000000000.00")
c01 = 1
pos = 1
TFNumero = ""
Do While c01 <= 5
c02 = 1
Do Whilec02 <= 3
dig = Val(Mid(NumTmp, pos, 1))
Select Case c02
Case 1: cen = dig
Case 2: dec = dig
Case 3: uni = dig
End Select
c02 = c02 + 1
pos = pos + 1
Loop
letra3 = Centena(uni,dec, cen)
letra2 = Decena(uni, dec)
letra1 = Unidad(uni, dec)
Select Case c01
Case 1
If cen + dec + uni = 1 Then
Leyenda = "Billon "
ElseIf cen + dec + uni > 1 Then
Leyenda ="Billones "
End If
Case 2
If cen + dec + uni >= 1 And Val(Mid _
(NumTmp, 7, 3)) = 0 Then
Leyenda = "Mil Millones "
ElseIf cen + dec + uni >= 1 Then
Leyenda = "Mil "
End If
Case 3If cen + dec = 0 And uni = 1 Then
Leyenda = "Millon "
ElseIf cen > 0 Or dec > 0 Or uni > 1 Then
Leyenda = "Millones "
End If
Case 4
If cen + dec + uni >= 1 Then
Leyenda ="Mil "
End If
Case 5
If cen + dec + uni >= 1 Then
Leyenda = ""
End If
End Select
c01 = c01 + 1
TFNumero = TFNumero + letra3 + letra2 + _
letra1 + Leyenda
Leyenda = ""
letra1 =""
letra2 = ""
letra3 = ""
Loop
If Val(NumTmp) = 0 Or Val(NumTmp) < 1 Then
Leyenda1 = "Cero Pesos"
ElseIf Val(NumTmp) = 1 Or Val(NumTmp) < 2 Then
Leyenda1 = "Pesos "
ElseIf...