1.在VBA中使用以下方法，即可破解Excel工作表密码。
（1）在Excel文档中,选择“视图”选项卡，选择“宏”，录制宏，然后停止录制。
（2）然后，按Alt + f11，调出VBA界面，发现有一个模块1，下面就是刚才录制宏的方法，把下面的代码Copy进去，替换掉，最后点工具栏的绿色三角形，执行方法，即可破解Excel工作表的密码。
Public Sub AllInternalPasswords()
‘ Breaks worksheet and workbook
structure passwords. Bob McCormick
‘ probably originator of base code
algorithm modified for coverage
‘ of workbook structure / windows passwords
and for multiple passwords
‘
‘ Norman Harker and JE McGimpsey 27-Dec-2002
(Version 1.1)
‘ Modified 2003-Apr-04 by JEM: All msgs to constants, and
‘
eliminate one Exit Sub (Version 1.1.1)
‘ Reveals hashed passwords NOT
original passwords
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 & "Version 1.1.1
2003-Apr-04"
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. Don‘t stuff up crucial
formulas " & _
"or data." & DBLSPACE & "Access and use of some
data " & _
"may be an offense. If in doubt, don‘t."
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 computer‘s 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
原文：http://www.cnblogs.com/jake-hl/p/3756972.html