Excel怎么撤销工作表保护密码Excel撤销工作表保护密码方法

　　我们经常使用Excel的工作表保护功能，将工作表用密码保护起来，以防别人操作时进行修改，但是这样一来有可能会无法进行一些操作(如输入公式等)，时间久了保护的密码也有可能忘记了，这该怎么办呢?只要按照以下步骤操作，Excel工作表保护密码瞬间即破!
　　1、打开您需要破解保护密码的Excel文件;
　　2、依次点击菜单栏上的工具---宏----录制新宏，输入宏名字如:aa;
　　3、停止录制(这样得到一个空宏);
　　4、依次点击菜单栏上的工具---宏----宏，选aa，点编辑按钮;
　　5、删除窗口中的所有字符(只有几个)，替换为下面的内容;
　　从横线下开始复制 -----------------------------
　　Option Explicit
　　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
　　----------------------
　　复制到横线以上
　　6、关闭编辑窗口;
　　7、依次点击菜单栏上的工具---宏-----宏，选AllInternalPasswords，运行，确定两次;