Excel表格密码保护的解除方法

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Excel表格密码保护的解除方法表格受密码保护时,我们修改数据Excel弹出“您试图更改的单元格或图表受保护,因而是只读的。

若要修改受保护单元格或图表,请先使用…撤消工作表保护‟命令(在…审阅‟选项卡的…更改‟组中)来取消保护。

可能会提示您输入密码。

这时候我们可以用VBA宏代码破解法来破解表格保护密码:第一步:打开该文件,先解除默认的“宏禁用”状态,方法是点击工具栏下的“选项”状态按钮,打开“Microsoft Office安全选项”窗口,选择其中的“启用此内容”,“确定”。

再切换到“视图”选项卡,点击“宏”→“录制宏”,出现“录制新宏”窗口,在“宏名”定义一个名称为:PasswordBreaker,点击“确定”退出;第二步:再点击“宏”→“查看宏”,选择“宏名”下的“PasswordBreaker”并点击“编辑”,打开“Microsoft Visual Basic”编辑器,用如下内容替换右侧窗口中的所有代码:Sub PasswordBreaker()Dim i As Integer, j As Integer, k As IntegerDim l As Integer, m As Integer, n As IntegerDim i1 As Integer, i2 As Integer, i3 As IntegerDim i4 As Integer, i5 As Integer, i6 As IntegerOn Error Resume NextFor i = 65 To 66: For j = 65 To 66: For k = 65 To 66For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126ActiveSheet.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 ActiveSheet.ProtectContents = False ThenMsgBox "One usable password is " & Chr(i) & Chr(j) & _Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)ActiveWorkbook.Sheets(1).SelectRange("a1").FormulaR1C1 = Chr(i) & Chr(j) & _Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & _Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)Exit SubEnd IfNext: Next: Next: Next: Next: NextNext: Next: Next: Next: Next: NextEnd Sub第三步:再点击“宏”→“查看宏”,选择“宏名”下的“PasswordBreaker”并点击“执行”,密码就现形了第四步:点击“撤消工作表保护”,然后输入密码即可解除锁定;测试结果,密码破解可用,但是很晕的是破解的密码跟原来的密码有很大的差距,想不明白了,反正能用就好。

/gxd2980449这段代码也是网上搜到的Option ExplicitPublic 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 passwordsConst DBLSPACE As String = vbNewLine & vbNewLineConst 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 & VERSIONConst MSGONLYONE As String = "Only structure / windows " & _ "protected with the password that was just found." & _ALLCLEAR & AUTHORS & VERSION & REPBACKDim w1 As Worksheet, w2 As WorksheetDim i As Integer, j As Integer, k As Integer, l As IntegerDim m As Integer, n As Integer, i1 As Integer, i2 As IntegerDim i3 As Integer, i4 As Integer, i5 As Integer, i6 As IntegerDim PWord1 As StringDim ShTag As Boolean, WinTag As BooleanApplication.ScreenUpdating = FalseWith ActiveWorkbookWinTag = .ProtectStructure Or .ProtectWindowsEnd WithShTag = FalseFor Each w1 In WorksheetsShTag = ShTag Or w1.ProtectContentsNext w1If Not ShTag And Not WinTag ThenMsgBox MSGNOPWORDS1, vbInformation, HEADERExit SubEnd IfMsgBox MSGTAKETIME, vbInformation, HEADERIf Not WinTag ThenMsgBox MSGNOPWORDS2, vbInformation, HEADERElseOn Error Resume NextDo 'dummy do loopFor i = 65 To 66: For j = 65 To 66: For k = 65 To 66For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126With 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 ThenPWord1 = 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, _ "$$", PWord1), vbInformation, HEADERExit Do 'Bypass all for...nextsEnd IfEnd WithNext: Next: Next: Next: Next: NextNext: Next: Next: Next: Next: NextLoop Until TrueOn Error GoTo 0End IfIf WinTag And Not ShTag ThenMsgBox MSGONLYONE, vbInformation, HEADERExit SubEnd IfOn Error Resume NextFor Each w1 In Worksheets'Attempt clearance with PWord1w1.Unprotect PWord1Next w1On Error GoTo 0ShTag = FalseFor Each w1 In Worksheets'Checks for all clear ShTag triggered to 1 if not.ShTag = ShTag Or w1.ProtectContentsNext w1If ShTag ThenFor Each w1 In WorksheetsWith w1If .ProtectContents ThenOn Error Resume NextDo 'Dummy do loopFor i = 65 To 66: For j = 65 To 66: For k = 65 To 66For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126 .Unprotect Chr(i) & Chr(j) & Chr(k) & _Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)If Not .ProtectContents ThenPWord1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & _Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & _Chr(i4) & Chr(i5) & Chr(i6) & Chr(n)MsgBox Application.Substitute(MSGPWORDFOUND2, _"$$", PWord1), vbInformation, HEADER'leverage finding Pword by trying on other sheetsFor Each w2 In Worksheetsw2.Unprotect PWord1Next w2Exit Do 'Bypass all for...nextsEnd IfNext: Next: Next: Next: Next: NextNext: Next: Next: Next: Next: NextLoop Until TrueOn Error GoTo 0End IfEnd WithNext w1End IfMsgBox ALLCLEAR & AUTHORS & VERSION & REPBACK, vbInformation, HEADEREnd Sub来自: /403286620/blog/。