Sub dbOpen()
Dim fname As Variant
Dim ws As Worksheet
fname = Application.GetOpenFilename("dbase-Dateien (*.dbf),*.dbf,Alle Dateien, *.*", , "Datei auswählen...")
If fname = False Then Exit Sub
Set ws = ActiveSheet
ws.Cells.Clear
Workbooks.Open fname
Cells.Copy ws.Range("A1")
ActiveWorkbook.Close False
End Sub