This should work:
Sub test()
Dim wbk As Workbook
strFirstFile = "C:\source.xls"
strSecondFile = "C:\destination.xls"
Range("A1:HC35").Copy
Set wbk = Workbooks.Open(strSecondFile)
With wbk.Sheets("Sheet1")
Range("A1").PasteSpecial Paste:=xlPasteAll, Operation:=xlNone, SkipBlanks:= _
False, Transpose:=False
End With
End Sub
solved Macro for copying cells from one workbook to another