有時候需要檢視原始碼來確認bug的位置，很多年前就用過類似程式碼，從網路上找來備份一下以備不時之需。

Private Sub VBAPassword()
'你要解保護的Excel檔案路徑
Filename = Application.GetOpenFilename("Excel檔案（*.xls & *.xla & *.xlt）,*.xls;*.xla;*.xlt", , "VBA破解")

If Dir(Filename) = "" Then
MsgBox "沒找到相關檔案,清重新設定。"
Exit Sub
Else
FileCopy Filename, Filename & ".bak"
 
 '備份檔案。
End If

Dim GetData As String * 5
Open Filename For Binary As #1
Dim CMGs As Long
Dim DPBo As Long
For i = 1 To LOF(1)
Get #1, i, GetData
If GetData = "CMG=""" Then CMGs = i
If GetData = "[Host" Then DPBo = i - 2: Exit For
Next

If CMGs = 0 Then
MsgBox "請先對VBA編碼設定一個保護密碼...", 32, "提示"
Exit Sub
 

End If

Dim St As String * 2
Dim s20 As String * 1

'取得一個0D0A十六進位制字串
Get #1, CMGs - 2, St

'取得一個20十六制字串
Get #1, DPBo + 16, s20

'替換加密部份機碼
For i = CMGs To DPBo Step 2
Put #1, i, St
Next

'加入不配對符號
If (DPBo - CMGs) Mod 2 <> 0 Then
Put #1, DPBo + 1, s20
End If
MsgBox "檔案解密成功......", 32, "提示"

Close #1
End
 
 Sub