Excel里多个sheet合并成一个/取消合并单元格并自动填充

Sub 合并当前工作簿下的所有工作表()
Application.ScreenUpdating = False
For j = 1 To Sheets.Count
   If Sheets(j).Name <> ActiveSheet.Name Then
       X = Range("A65536").End(xlUp).Row + 1
       Sheets(j).UsedRange.Copy Cells(X, 1)
   End If
Next
Range("B1").Select
Application.ScreenUpdating = True
MsgBox "当前工作簿下的全部工作表已经合并完毕！", vbInformation, "提示"
End Sub

Sub 取消合并并还原数据()
    Dim a As Range, b As Range
    For Each a In ActiveSheet.UsedRange
        If a.MergeCells Then
            Set b = a.MergeArea
            b.UnMerge
            b.Value = a.Value
        End If
    Next
End Sub