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網(wǎng)上下載了工作簿，發(fā)現(xiàn)居然有密碼!xxoo，既然放網(wǎng)上干嘛要加密碼啊?!后來網(wǎng)上找到使用VBA破解工作表密碼的方法，拿來分享。
首先，嘗試打開工作簿時(shí)，提示有密碼：
使用快捷鍵Ctrl+F11鍵，打開VBA編輯界面，點(diǎn)擊“插入”菜單下的子菜單“模塊”：
在模塊編輯器中輸入以下代碼：
Option Explicit
Public Sub AllInternalPasswords()
Const DBLSPACE As String = vbNewLine & vbNewLine
Const AUTHORS As String = DBLSPACE & vbNewLine & _
"Adapted from Bob McCormick base code by" & _
"Norman Harker and JE MCGImpsey"
Const HEADER As String = "AllInternalPasswords User Message"
Const VERSION As String = DBLSPACE
Const REPBACK As String = DBLSPACE & "Please report failure " & _
"to the microsoft.public.Excel.programming newsgroup."
Const ALLCLEAR As String = DBLSPACE & "The workbook should " & _
"now be free of all password protection, so make sure you:" & _
DBLSPACE & "SAVE IT NOW!" & DBLSPACE & "and also" & _
DBLSPACE & "BACKUP!, BACKUP!!, BACKUP!!!" & _
DBLSPACE & "Also, remember that the password was " & _
"put there for a reason. Dont stuff up crucial formulas " & _
"or data." & DBLSPACE & "Access and use of some data " & _
"may be an offense. If in doubt, dont."
Const MSGNOPWORDS1 As String = "There were no passwords on " & _
"sheets, or workbook structure or windows." & AUTHORS & VERSION
Const MSGNOPWORDS2 As String = "There was no protection to " & _
"workbook structure or windows." & DBLSPACE & _
"Proceeding to unprotect sheets." & AUTHORS & VERSION
Const MSGTAKETIME As String = "After pressing OK button this " & _
"will take some time." & DBLSPACE & "Amount of time " & _
"depends on how many different passwords, the " & _
"passwords, and your computers specification." & DBLSPACE & _
"Just be patient! Make me a coffee!" & AUTHORS & VERSION
Const MSGPWORDFOUND1 As String = "You had a Worksheet " & _
"Structure or Windows Password set." & DBLSPACE & _
"The password found was: " & DBLSPACE & "$$" & DBLSPACE & _
"Note it down for potential future use in other workbooks by " & _
"the same person who set this password." & DBLSPACE & _
"Now to check and clear other passwords." & AUTHORS & VERSION
Const MSGPWORDFOUND2 As String = "You had a Worksheet " & _
"password set." & DBLSPACE & "The password found was: " & _
DBLSPACE & "$$" & DBLSPACE & "Note it down for potential " & _
"future use in other workbooks by same person who " & _
"set this password." & DBLSPACE & "Now to check and clear " & _
"other passwords." & AUTHORS & VERSION
Const MSGONLYONE As String = "Only structure / windows " & _
"protected with the password that was just found." & _
ALLCLEAR & AUTHORS & VERSION & REPBACK
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 MSGNOPWORDS1, vbInformation, HEADER
Exit Sub
End If
MsgBox MSGTAKETIME, vbInformation, HEADER
If Not WinTag Then
MsgBox MSGNOPWORDS2, vbInformation, HEADER
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(MSGPWORDFOUND1, _
"$$", PWord1), vbInformation, HEADER
Exit Do Bypass all for...nexts
End If
End With
Next: Next: Next: Next: Next: Next
Next: Next: Next: Next: Next: Next
Loop Until True
On Error GoTo 0
End If
If WinTag And Not ShTag Then
MsgBox MSGONLYONE, vbInformation, HEADER
Exit Sub
End If
On Error Resume Next
For Each w1 In Worksheets
Attempt clearance with PWord1
w1.Unprotect PWord1
Next w1
On Error GoTo 0
ShTag = False
For Each w1 In Worksheets
Checks for all clear ShTag triggered to 1 if not.
ShTag = ShTag Or w1.ProtectContents
Next w1
If ShTag Then
For Each w1 In Worksheets
With w1
If .ProtectContents Then
On Error Resume Next
Do Dummy do loop
For i = 65 To 66: For j = 65 To 66: For k = 65 To 66
For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66
For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66
For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126
.Unprotect Chr(i) & Chr(j) & Chr(k) & _
Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
If Not .ProtectContents Then
PWord1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & _
Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _
Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)
MsgBox Application.Substitute(MSGPWORDFOUND2, _
"$$", PWord1), vbInformation, HEADER
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 ALLCLEAR & AUTHORS & VERSION & REPBACK, vbInformation, HEADER
End Sub
點(diǎn)擊運(yùn)行：
破解過程需要幾分鐘，有幾次對(duì)話框彈出，都是英文的，留意對(duì)話框中如下內(nèi)容：
標(biāo)注部分即為密碼。雖然不是原始密碼，但是用這個(gè)密碼照樣可以打開工作簿的。
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