[Office]Execl取消保护密码

1. 2007版Excel表格中可以按照以下方式建宏：

   打开Excel表格中的Excel选项，选择自定义，得到如下画面：

   
2.  然后在左边侧框栏中选择“查看宏”或者Alt+F11

   之后双击或者选择添加按钮，则可以看到右边栏中有了查看宏按钮，之后点击右下角的确定。

3.  大家可以在下面这个窗口处看到箭头所指的按钮：

   点击按钮，之后弹出窗口：

   

   
4.  在宏名处填写一个名字（可随意），然后点击创建，弹出以下窗口：
   
5.  将窗口内的内容全选后删除，然后将下面分割线以内的内容开始复制粘贴在上面的窗口内：

   从横线下开始复制

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   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

   得到情况如下图表示

   
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；

   等一会,就会出现以下对话框：这就是Excel密码对应的原始密码(此密码和原先设置的密码都能打开此文档。如果是别人的文档，你又想恢复密码设置，就可以用此密码进行保护，他就能用他设置的密码打开，你可以试试，很有趣的。字母一定要大写)：

   再点击确定。Excel的原始密码就被清除了!!

   
8. 最后记得关闭EXCEL文档时要保存，否则下回打开，文档仍旧处于只读状态而无法修改。