Hi
for this you need VBA. You may try the following macros:
Option Explicit
Sub insert_pagebreak()
Dim lastrow As Long
Dim row_index As Long
lastrow = ActiveSheet.Cells(Rows.Count, "A").End(xlUp).row
For row_index = lastrow - 1 To 1 Step -1
If Cells(row_index, "A").Value <> _
Cells(row_index + 1, "A").Value Then
ActiveSheet.HPageBreaks.Add Before:= _
Cells(row_index + 1, "A")
End If
Next
End Sub
Sub remove_them()
ActiveSheet.ResetAllPageBreaks
End Sub