新しいワークブックがコピーされていないときに選択している範囲がなぜわからないのですか。ワークブック シートが空白で、その理由がわかりません。
Sub NB()
Dim X
Dim copyRange
Dim lngCnt As Long
Dim strDT As String
Dim strNewBook As String
Dim objWS As Object
Dim WB As Workbook
Dim bNewBook As Boolean
Dim topRow As Integer
topRow = -1
Set objWS = CreateObject("WScript.Shell")
strDT = objWS.SpecialFolders("Desktop") & "\Book1"
If Len(Dir(strDT, vbDirectory)) = 0 Then
MsgBox "No such directory", vbCritical
Exit Sub
End If
X = Range([f1], Cells(Rows.Count, "f").End(xlUp)).Value2
For lngCnt = 1 To UBound(X, 1)
If Len(X(lngCnt, 1)) > 0 Then
If (topRow = -1) Then
topRow = lngCnt
Else
If Not bNewBook Then
'make a single sheet workbook for first value
Set WB = Workbooks.Add(1)
copyRange = Range(Cells(topRow, "f"), Cells(lngCnt, 12).End(xlUp)).Value2
'find a way to copy copyRange into WB
Range(Cells(topRow, "f"), Cells(lngCnt, 12).End(xlUp)).Select
Range(Cells(topRow, "f"), Cells(lngCnt, 12).End(xlUp)).Copy
Range("A1").PasteSpecial
WB.SaveAs strDT & "\" & X(topRow, 1) & ".xls"
strNewBook = WB.FullName
WB.Close
bNewBook = True
Else
Set WB = Workbooks.Add(1)
copyRange = Range(Cells(topRow, "f"), Cells(lngCnt, 12).End(xlUp)).Value2
'find a way to copy copyRange into WB
Range(Cells(topRow, "f"), Cells(lngCnt, 12).End(xlUp)).Select
Range(Cells(topRow, "f"), Cells(lngCnt, 12).End(xlUp)).Copy
Range("A1").PasteSpecial
WB.SaveAs strDT & "\" & X(topRow, 1) & ".xls"
WB.Close
End If
topRow = lngCnt
End If
End If
Next