如何破解excel用户自定义函数的源代码
下载了一个excel插值安装程序,打开excel会自动加载这个插值程序,关键部分是在调用公式计算的时候,有个用户自定义的函数,我想查看这个函数是如何编写的,但alt+F1...
下载了一个excel 插值安装程序,打开excel会自动加载这个插值程序,关键部分是在调用公式计算的时候,有个用户自定义的函数,我想查看这个函数是如何编写的,但alt+F11查看时发现有密码,根本打不开,这个软件试用期30天,过了就不能用了。哪位高人指点一下,谢谢
excel叫 how to use DCFC_add-in.xls,网上可以下载到,主要就是图片中data curve fit creator addin(data_curve_fit_creator.xla)这个打开时需要密码。 展开
excel叫 how to use DCFC_add-in.xls,网上可以下载到,主要就是图片中data curve fit creator addin(data_curve_fit_creator.xla)这个打开时需要密码。 展开
2个回答
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新建一个Excel工作簿,Alt+F11 打开VBA编辑器,新建一个模块 ,复制以下代码,注意如提示变量未定义,则把Option Explicit行删除即可,经测试已经通过.
'移除VBA编码保护
Sub MoveProtect()
Dim FileName As String
FileName = Application.GetOpenFilename("Excel文件(*.xls & *.xla),*.xls;*.xla", , "VBA破解")
If FileName = CStr(False) Then
Exit Sub
Else
VBAPassword FileName, False
End If
End Sub
'设置VBA编码保护
Sub SetProtect()
Dim FileName As String
FileName = Application.GetOpenFilename("Excel文件(*.xls & *.xla),*.xls;*.xla", , "VBA破解")
If FileName = CStr(False) Then
Exit Sub
Else
VBAPassword FileName, True
End If
End Sub
Private Function VBAPassword(FileName As String, Optional Protect As Boolean = False)
If Dir(FileName) = "" Then
Exit Function
Else
FileCopy FileName, FileName & ".bak"
End If
Dim GetData As String * 5
Open FileName For Binary As #1
Dim CMGs As Long
Dim DPBo As Long
For i = 1 To LOF(1)
Get #1, i, GetData
If GetData = "CMG=""" Then CMGs = i
If GetData = "[Host" Then DPBo = i - 2: Exit For
Next
If CMGs = 0 Then
MsgBox "请先对VBA编码设置一个保护密码...", 32, "提示"
Exit Function
End If
If Protect = False Then
Dim St As String * 2
Dim s20 As String * 1
'取得一个0D0A十六进制字串
Get #1, CMGs - 2, St
'取得一个20十六制字串
Get #1, DPBo + 16, s20
'替换加密部份机码
For i = CMGs To DPBo Step 2
Put #1, i, St
Next
'加入不配对符号
If (DPBo - CMGs) Mod 2 <> 0 Then
Put #1, DPBo + 1, s20
End If
MsgBox "文件解密成功......", 32, "提示"
Else
Dim MMs As String * 5
MMs = "DPB="""
Put #1, CMGs, MMs
MsgBox "对文件特殊加密成功......", 32, "提示"
End If
Close #1
End Function
'移除VBA编码保护
Sub MoveProtect()
Dim FileName As String
FileName = Application.GetOpenFilename("Excel文件(*.xls & *.xla),*.xls;*.xla", , "VBA破解")
If FileName = CStr(False) Then
Exit Sub
Else
VBAPassword FileName, False
End If
End Sub
'设置VBA编码保护
Sub SetProtect()
Dim FileName As String
FileName = Application.GetOpenFilename("Excel文件(*.xls & *.xla),*.xls;*.xla", , "VBA破解")
If FileName = CStr(False) Then
Exit Sub
Else
VBAPassword FileName, True
End If
End Sub
Private Function VBAPassword(FileName As String, Optional Protect As Boolean = False)
If Dir(FileName) = "" Then
Exit Function
Else
FileCopy FileName, FileName & ".bak"
End If
Dim GetData As String * 5
Open FileName For Binary As #1
Dim CMGs As Long
Dim DPBo As Long
For i = 1 To LOF(1)
Get #1, i, GetData
If GetData = "CMG=""" Then CMGs = i
If GetData = "[Host" Then DPBo = i - 2: Exit For
Next
If CMGs = 0 Then
MsgBox "请先对VBA编码设置一个保护密码...", 32, "提示"
Exit Function
End If
If Protect = False Then
Dim St As String * 2
Dim s20 As String * 1
'取得一个0D0A十六进制字串
Get #1, CMGs - 2, St
'取得一个20十六制字串
Get #1, DPBo + 16, s20
'替换加密部份机码
For i = CMGs To DPBo Step 2
Put #1, i, St
Next
'加入不配对符号
If (DPBo - CMGs) Mod 2 <> 0 Then
Put #1, DPBo + 1, s20
End If
MsgBox "文件解密成功......", 32, "提示"
Else
Dim MMs As String * 5
MMs = "DPB="""
Put #1, CMGs, MMs
MsgBox "对文件特殊加密成功......", 32, "提示"
End If
Close #1
End Function
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你好, 试过了,还是不行,谢谢你。
2011-11-19
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加密了,不太容易破解,人家那可是知识产权呀,呵呵!
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