¿Cómo crear un calendario en Excel?

Con el siguiente código VBA, podrá crear rápidamente un calendario mensual. Siga estos sencillos pasos:

1. Pulse las teclas Alt + F11 para abrir la ventana de Microsoft Visual Basic para Aplicaciones.

2. Aparecerá una nueva ventana. Haga clic en Insertar > Módulo y, a continuación, introduzca el siguiente código en el módulo:

 Sub CalendarMaker()
ActiveSheet.Protect DrawingObjects:=False, Contents:=False, _
Scenarios:=False
Application.ScreenUpdating = False
On Error GoTo MyErrorTrap
Range("a1:g14").Clear
MyInput = InputBox("Type in Month and year for Calendar ")
If MyInput = "" Then Exit Sub
StartDay = DateValue(MyInput)
If Day(StartDay) <> 1 Then
StartDay = DateValue(Month(StartDay) & "/1/" & _
Year(StartDay))
End If
Range("a1").NumberFormat = "mmmm yyyy"
With Range("a1:g1")
.HorizontalAlignment = xlCenterAcrossSelection
.VerticalAlignment = xlCenter
.Font.Size = 18
.Font.Bold = True
.RowHeight = 35
End With
With Range("a2:g2")
.ColumnWidth = 11
.VerticalAlignment = xlCenter
.HorizontalAlignment = xlCenter
.VerticalAlignment = xlCenter
.Orientation = xlHorizontal
.Font.Size = 12
.Font.Bold = True
.RowHeight = 20
End With
Range("a2") = "Sunday"
Range("b2") = "Monday"
Range("c2") = "Tuesday"
Range("d2") = "Wednesday"
Range("e2") = "Thursday"
Range("f2") = "Friday"
Range("g2") = "Saturday"
With Range("a3:g8")
.HorizontalAlignment = xlRight
.VerticalAlignment = xlTop
.Font.Size = 18
.Font.Bold = True
.RowHeight = 21
End With
Range("a1").Value = Application.Text(MyInput, "mmmm yyyy")
DayofWeek = Weekday(StartDay)
CurYear = Year(StartDay)
CurMonth = Month(StartDay)
FinalDay = DateSerial(CurYear, CurMonth + 1, 1)
Select Case DayofWeek
Case 1
Range("a3").Value = 1
Case 2
Range("b3").Value = 1
Case 3
Range("c3").Value = 1
Case 4
Range("d3").Value = 1
Case 5
Range("e3").Value = 1
Case 6
Range("f3").Value = 1
Case 7
Range("g3").Value = 1
End Select
For Each cell In Range("a3:g8")
RowCell = cell.Row
ColCell = cell.Column
If cell.Column = 1 And cell.Row = 3 Then
ElseIf cell.Column <> 1 Then
If cell.Offset(0, -1).Value >= 1 Then
cell.Value = cell.Offset(0, -1).Value + 1
If cell.Value > (FinalDay - StartDay) Then
cell.Value = ""
Exit For
End If
End If
ElseIf cell.Row > 3 And cell.Column = 1 Then
cell.Value = cell.Offset(-1, 6).Value + 1
If cell.Value > (FinalDay - StartDay) Then
cell.Value = ""
Exit For
End If
End If
Next
For x = 0 To 5
Range("A4").Offset(x * 2, 0).EntireRow.Insert
With Range("A4:G4").Offset(x * 2, 0)
.RowHeight = 65
.HorizontalAlignment = xlCenter
.VerticalAlignment = xlTop
.WrapText = True
.Font.Size = 10
.Font.Bold = False
.Locked = False
End With
With Range("A3").Offset(x * 2, 0).Resize(2, _
7).Borders(xlLeft)
.Weight = xlThick
.ColorIndex = xlAutomatic
End With
With Range("A3").Offset(x * 2, 0).Resize(2, _
7).Borders(xlRight)
.Weight = xlThick
.ColorIndex = xlAutomatic
End With
Range("A3").Offset(x * 2, 0).Resize(2, 7).BorderAround _
Weight:=xlThick, ColorIndex:=xlAutomatic
Next
If Range("A13").Value = "" Then Range("A13").Offset(0, 0) _
.Resize(2, 8).EntireRow.Delete
ActiveWindow.DisplayGridlines = False
ActiveSheet.Protect DrawingObjects:=True, Contents:=True, _
Scenarios:=True
ActiveWindow.WindowState = xlMaximized
ActiveWindow.ScrollRow = 1
Application.ScreenUpdating = True
Exit Sub
MyErrorTrap:
MsgBox "You may not have entered your Month and Year correctly." _
& Chr(13) & "Spell the Month correctly" _
& " (or use 3 letter abbreviation)" _
& Chr(13) & "and 4 digits for the Year"
MyInput = InputBox("Type in Month and year for Calendar")
If MyInput = "" Then Exit Sub
Resume
End Sub 

3. A continuación, haga clic en el botón Ejecutar o pulse la tecla F5 para ejecutar la aplicación. Aparecerá un cuadro de diálogo en el que podrá introducir el mes y el año en el campo correspondiente.

Resultado