做資料分析的人都知道，原始資料的正確性是非常重要的，常常會因為一個資料的錯誤，導致結果產生很大的偏差。
因此在工作表中將原始資料輸入完成併校對後，為了防止誤操作或是被他人隨意複製，都會選擇將這些資料進行保護。
但隨著現代生活節奏的加快，再加上使用密碼的地方太多，因此忘記密碼的事情也是常有發生。當辛苦做的一份工作紙因為忘記密碼再也不能進行修改時，是不是覺得很鬱悶呢？
這時該怎麼辦？重做一份嗎？其實不用這麼麻煩，下面我就為大家分享兩種常用的清除工作表保護密碼的方法。
利用VBA清除
1、點擊選單列中的“開發工具”，選擇錄製宏，錄製一個名為“清除工作表保護密碼”的宏文件（可以根據自己的習慣命名該巨集文件）。
2、再次點擊選單列中的“開發工具”，選擇“巨集”，開啟巨集對話框，“巨集名”選擇剛剛新建的巨集文件，然後點選“編輯”，開啟巨集（VBA）編輯視窗。
3、在巨集（VBA）編輯視窗的左側依序選擇「VBAProject PERSONAL,XLSB」→「模組」→「模組2」後，將右邊的程式碼視窗中的原有內容刪除後，把以下程式碼複製後貼上在程式碼視窗中儲存。
4、再次點擊選單列中的“開發工具”，選擇“巨集”，開啟巨集對話框，“巨集名”選擇剛剛新建的巨集文件，然後點擊“執行”或“單步執行”，等程式運行完成後工作表保護密碼就清除了。 （提示：程式運行時有點卡，如果電腦配置低就選擇單步執行，效果是一樣的）
#VBA程式碼如下：
Public Sub 工作表保护密码破解()
Const HUANHANG As String = vbNewLine & vbNewLine
Const MINGCHEN As String = "清除工作表保护密码"
Const JINGGAO As String = "该工作簿中的工作表密码保护已全部清除!!" & HUANHANG & "请记得另保存" _
& HUANHANG & "注意：不要用在不当地方，要尊重他人的劳动成果！"
Const TISHI1 As String = "该文件工作表中没有加密"
Const TISHI2 As String = "该文件工作表中没有加密2"
Const KSPJ As String = "解密需花费一定时间,请耐心等候!" & HUANHANG & "按确定开始清除!"
Const FXMM1 As String = "密码重新组合为:" & HUANHANG & "$$" & HUANHANG & _
"如果该文件工作表有不同密码,将搜索下一组密码并修改清除"
Const FXMM2 As String = "密码重新组合为:" & HUANHANG & "$$" & HUANHANG & _
"如果该文件工作表有不同密码,将搜索下一组密码并解除"
Const MSGONLYONE As String = "确保为唯一的?"
Dim w1 As Worksheet, w2 As Worksheet
Dim i As Integer, j As Integer, k As Integer, l As Integer
Dim m As Integer, n As Integer, i1 As Integer, i2 As Integer
Dim i3 As Integer, i4 As Integer, i5 As Integer, i6 As Integer
Dim PWord1 As String
Dim ShTag As Boolean, WinTag As Boolean
Application.ScreenUpdating = False
With ActiveWorkbook
WinTag = .ProtectStructure Or .ProtectWindows
End With
ShTag = False
For Each w1 In Worksheets
ShTag = ShTag Or w1.ProtectContents
Next w1
If Not ShTag And Not WinTag Then
MsgBox TISHI1, vbInformation, MINGCHEN
Exit Sub
End If
MsgBox KSPJ, vbInformation, MINGCHEN
If Not WinTag Then
Else
On Error Resume Next
Do 'dummy do loop
For i = 65 To 66: For j = 65 To 66: For k = 65 To 66
For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66
For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66
For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126
With ActiveWorkbook
.Unprotect Chr(i) & Chr(j) & Chr(k) & _
Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _
Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
If .ProtectStructure = False And _
.ProtectWindows = False Then
PWord1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & _
Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
MsgBox Application.Substitute(FXMM1, _
"$$", PWord1), vbInformation, MINGCHEN
Exit Do 'Bypass all for...nexts
End If
End With
Next: Next: Next: Next: Next: Next
Next: Next: Next: Next: Next: Next
Loop Until True
On Error GoTo 0
End If
If WinTag And Not ShTag Then
MsgBox MSGONLYONE, vbInformation, MINGCHEN
Exit Sub
End If
On Error Resume Next
For Each w1 In Worksheets
'Attempt clearance with PWord1
w1.Unprotect PWord1
Next w1
On Error GoTo 0
ShTag = False
For Each w1 In Worksheets
'Checks for all clear ShTag triggered to 1 if not.
ShTag = ShTag Or w1.ProtectContents
Next w1
If ShTag Then
For Each w1 In Worksheets
With w1
If .ProtectContents Then
On Error Resume Next
Do 'Dummy do loop
For i = 65 To 66: For j = 65 To 66: For k = 65 To 66
For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66
For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66
For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126
.Unprotect Chr(i) & Chr(j) & Chr(k) & _
Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
If Not .ProtectContents Then
PWord1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & _
Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
MsgBox Application.Substitute(FXMM2, _
"$$", PWord1), vbInformation, MINGCHEN
'leverage finding Pword by trying on other sheets
For Each w2 In Worksheets
w2.Unprotect PWord1
Next w2
Exit Do 'Bypass all for...nexts
End If
Next: Next: Next: Next: Next: Next
Next: Next: Next: Next: Next: Next
Loop Until True
On Error GoTo 0
End If
End With
Next w1
End If
MsgBox JINGGAO, vbInformation, MINGCHEN
End Sub
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