弱电设计师需要懂得的跨界：如何使用excel宏命令破解加密的excel表格？

: 晓得点一个智能化行业的打杂人员

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你拿到的招标文件的excel表格被加密了，除了手动复制粘贴到新建的excel以外，我们还可以把密码清除了，两分钟的事情。

第一步，调出excel的宏开发项，操作如图

第二步新建一个宏（一定要在需要清除密码的excel文件上新建）

这样得到一个新建的宏文件。

第三步，选择刚刚新建的宏文件

点击编辑之后会弹出一个宏文件的框，请把下面的代码先复制好。

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