Я думаю, у вас есть текст во всех этих ячейках, а затем просто присоединитесь к ним:
Option Explicit
Sub SetCenterHeader()
Dim txt As String
Dim myRow As Range
With Range("NorthHead") ' reference named range
For Each myRow In .Rows ' loop through referenced range rows
txt = txt & Join(Application.Transpose(Application.Transpose(myRow.Value)), " ") & vbLf ' update 'txt' with current row cells values joined and separated by a blank
Next
End With
ActiveSheet.PageSetup.CenterHeader = Left(txt, Len(txt) - 1) ' set CenterHeader with resulting 'txt' excluding last vblf character
ActiveWindow.SelectedSheets.PrintOut Copies:=1
End Sub