在Excel中經常需要用到密碼保護進行保護重要數據，當Excel密碼忘記的時候，我們就需要用點技巧把密碼給解開。接下來是學習啦小編為大家?guī)淼娜绾谓忾_excel密碼的教程，希望對你有用。

　　如何解開excel密碼的教程：

　　解密步驟1：首先打開EXCEL，選擇視圖，宏，錄制新宏，新建一個宏，可以隨便取個名字。

　　解密步驟2：先生成一個空的宏

　　解密步驟3：編輯這個宏，選中剛新建的宏后點擊編輯按鈕

　　解密步驟4：刪除窗口所有字符，把下面的內容粘貼進入。一個字母、標點符號都不能少不能錯。

　　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

　　解密步驟5：關閉掉編輯窗口

　　解密步驟6：在宏里選中AllInternalPasswords這個編輯好的宏，執(zhí)行，并且確定數次，就OK了。