Record a macro when you select that column of cells that look like 13.07.2006.

Then use data|text to columns
fixed width
Date format (dmy)
and then change the format to yyyymmdd

And you'll have your code that looks kind of like:

Option Explicit
Sub ChangeDateFormat()

Dim strFileName As Variant
Dim wkbk As Workbook

strFileName = Application.GetOpenFilename("Report (*.xls),*.xls")
Application.ScreenUpdating = False
If strFileName < False Then
Set wkbk = Workbooks.Open(Filename:=strFileName)
With wkbk.Worksheets(1) 'do you know the name of the worksheet?
With .Range("a:a")
.TextToColumns Destination:=.Cells(1), _
DataType:=xlFixedWidth, FieldInfo:=Array(0, 4)
.NumberFormat = "yyyymmdd"
End With
End With
End With
End Sub




Frank wrote:

I want to change the date format in VBA from "13.07.2006" to "20060713".

If I try to record a macro applying the Format, Format cells... function,
nothing happends.

The excel workbook has date values in column A with the wrong format
"13.07.2006". The correct format is "20060713".

I try to open the workbook and create a new column B with correct date format.
Then I try to overwrite column A with a pasteSpecial command.

When I run the macro, I return runtime error 1004.

Any suggestions to make this work?

Regards

Frank Krogh

Sub ChangeDateFormat()
strFilename = Application.GetOpenFilename("Report (*.xls),*.xls")
Application.ScreenUpdating = False
If strFilename < "False" Then
Workbooks.Open strFilename
Columns("B:B").Select

Application.Workbooks(Workbooks.Count).Activate
With Selection
.Formula = "=CONCATENATE(LEFT(A,7,4),(LEFT(A,1,2),(LEFT(A,4,2 ))"
End With

Columns("B:B").Select
Selection.Copy
Columns("A:A").Select
Selection.PasteSpecial Paste:=xlPasteValues, Operation:=xlNone, SkipBlanks _
:=False, Transpose:=False
End If
End Sub

--

Dave Peterson