事实上，大多数启用宏的Office文档的代码文件都没有加密，密码只会阻止使用Office程序打开项目。 这意味着，正如其他答案所建议的那样，您通常可以使用Office替代品来访问和编辑该文件。

但是，如果你只是需要访问代码，你可以使用oldump .py这样的工具来提取宏代码。这对于恶意软件分析非常有用，还可以从文件中获取大部分代码，这样如果忘记密码，就不必从头开始了。

此外，许多excel文件在打开时动态设置密码。这意味着如果您可以阅读代码，您通常可以找到明文密码或消除混淆。

oledump.py例子:

列出一个办公文档中的所有“流”(嵌入式二进制文件或代码文件):

python oledump.py -v yourExcelFile.xlsm

输出:

A: xl/vbaProject.bin
 A1:      2000 'PROJECT'
 A2:      1500 'PROJECTwm'
 A3: M    1224 'VBA/Module1'
 A4: M   18694 'VBA/Module2'
 A5: M   11877 'VBA/Module3'
...

旁边带M的流是宏，这是未加密的VBA代码

提取流

python oledump.py -s A3 -v yourExcelFile.xlsm > Module1.vba

这将把A3流中包含的代码输出到Module1.vba。

我通常将此与循环结合起来，将所有文件解压缩到一个文件夹中。这个快速的PowerShell脚本将提取大多数文件中的所有流:

New-Item -ItemType Directory "Output"

# just hardcode the highest stream outputted by oledump.py -v
$max = 5 
for ($i = 1; $i -le $max; $i++) {
    python oledump.py -s "A$i" -v yourExcelFile.xlsm > ".\Output\A$i"
}

注意，这将只提取人类可读的文件。

您的excel文件扩展名更改为xml。 然后用记事本打开。 密码文本在XML文件中找到。

你看下面这条线;

Sheets("Sheet1").Unprotect Password:="blabla"

(抱歉我的英语不好)

编辑:这是已接受答案的更新版本，应该适用于更多的办公室版本。这很难，但让我们把这个答案说出来吧!

轮到我了，这是建立在kaybee99的优秀答案之上的，它建立在Đức Thanh nguykun的出色答案之上，允许这种方法与32/64位版本的Office一起工作。

概览一下更改的内容，我们避免了push/ret，它仅限于32位地址，并将其替换为mov/jmp reg。

它是如何工作的

Open the file(s) that contain your locked VBA Projects. Create a new file with the same type as the above and store this code in Module1 Option Explicit Private Const PAGE_EXECUTE_READWRITE = &H40 Private Declare PtrSafe Sub MoveMemory Lib "kernel32" Alias "RtlMoveMemory" _ (Destination As LongPtr, Source As LongPtr, ByVal Length As LongPtr) Private Declare PtrSafe Function VirtualProtect Lib "kernel32" (lpAddress As LongPtr, _ ByVal dwSize As LongPtr, ByVal flNewProtect As LongPtr, lpflOldProtect As LongPtr) As LongPtr Private Declare PtrSafe Function GetModuleHandleA Lib "kernel32" (ByVal lpModuleName As String) As LongPtr Private Declare PtrSafe Function GetProcAddress Lib "kernel32" (ByVal hModule As LongPtr, _ ByVal lpProcName As String) As LongPtr Private Declare PtrSafe Function DialogBoxParam Lib "user32" Alias "DialogBoxParamA" (ByVal hInstance As LongPtr, _ ByVal pTemplateName As LongPtr, ByVal hWndParent As LongPtr, _ ByVal lpDialogFunc As LongPtr, ByVal dwInitParam As LongPtr) As Integer Dim HookBytes(0 To 11) As Byte Dim OriginBytes(0 To 11) As Byte Dim pFunc As LongPtr Dim Flag As Boolean Private Function GetPtr(ByVal Value As LongPtr) As LongPtr GetPtr = Value End Function Public Sub RecoverBytes() If Flag Then MoveMemory ByVal pFunc, ByVal VarPtr(OriginBytes(0)), 12 End Sub Public Function Hook() As Boolean Dim TmpBytes(0 To 11) As Byte Dim p As LongPtr, osi As Byte Dim OriginProtect As LongPtr Hook = False #If Win64 Then osi = 1 #Else osi = 0 #End If pFunc = GetProcAddress(GetModuleHandleA("user32.dll"), "DialogBoxParamA") If VirtualProtect(ByVal pFunc, 12, PAGE_EXECUTE_READWRITE, OriginProtect) <> 0 Then MoveMemory ByVal VarPtr(TmpBytes(0)), ByVal pFunc, osi+1 If TmpBytes(osi) <> &HB8 Then MoveMemory ByVal VarPtr(OriginBytes(0)), ByVal pFunc, 12 p = GetPtr(AddressOf MyDialogBoxParam) If osi Then HookBytes(0) = &H48 HookBytes(osi) = &HB8 osi = osi + 1 MoveMemory ByVal VarPtr(HookBytes(osi)), ByVal VarPtr(p), 4 * osi HookBytes(osi + 4 * osi) = &HFF HookBytes(osi + 4 * osi + 1) = &HE0 MoveMemory ByVal pFunc, ByVal VarPtr(HookBytes(0)), 12 Flag = True Hook = True End If End If End Function Private Function MyDialogBoxParam(ByVal hInstance As LongPtr, _ ByVal pTemplateName As LongPtr, ByVal hWndParent As LongPtr, _ ByVal lpDialogFunc As LongPtr, ByVal dwInitParam As LongPtr) As Integer If pTemplateName = 4070 Then MyDialogBoxParam = 1 Else RecoverBytes MyDialogBoxParam = DialogBoxParam(hInstance, pTemplateName, _ hWndParent, lpDialogFunc, dwInitParam) Hook End If End Function Paste this code in Module2 and run it Sub unprotected() If Hook Then MsgBox "VBA Project is unprotected!", vbInformation, "*****" End If End Sub

如果该文件是一个有效的zip文件(前几个字节是504b——用于.xlsm等格式)，那么解压缩该文件并查找子文件xl/vbaProject.bin。这是一个CFB文件，就像.xls文件一样。按照XLS格式的说明(应用于子文件)，然后压缩内容。

对于XLS格式，您可以使用本文中的其他一些方法。我个人更喜欢搜索DPB=块并替换文本

CMG="..."
DPB="..."
GC="..."

有空格。这样就避免了CFB容器大小的问题。

Colin Pickard is mostly correct, but don't confuse the "password to open" protection for the entire file with the VBA password protection, which is completely different from the former and is the same for Office 2003 and 2007 (for Office 2007, rename the file to .zip and look for the vbaProject.bin inside the zip). And that technically the correct way to edit the file is to use a OLE compound document viewer like CFX to open up the correct stream. Of course, if you are just replacing bytes, the plain old binary editor may work.

顺便说一句，如果你想知道这些字段的确切格式，他们现在有文档:

http://msdn.microsoft.com/en-us/library/dd926151%28v=office.12%29.aspx

删除VBA项目密码的一个简单方法是执行以下操作:

将xlsm文件转换为zip 打开VBAProject.bin文件(我更喜欢使用notepad++ (https://notepad-plus-plus.org/downloads/)) 搜索DPB字段 用DPx替换它 保存文件 将zip文件转换为XLSM 打开excel文件 如果出现消息框，请单击“是” 为VBA项目属性设置新密码 关闭并再次打开该文件 输入新密码取消保护