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  • 破解Excel 密码保护

    Excel加密虽然不能防止能打开的人通过复制等操作外泄,但至少也是一防较好的防线。移除Excel 2013的密码保护方法如下:

    1. 点击“Office”按钮,再选择“另存为”:
    2. 在弹出的“另存为”对话框中,单击左下角的“工具”按钮,选择“常规选项”:
    3. 弹出“常规选项”对话框,可以看到,当然有星号显示密码:
    4. 将这个星号显示的密码清除,再单击“确定”即可:

    Excel文件虽然能打开,能编辑,一些工作簿却因为有了“保护工作表”密码而无法编辑。可以用如下代码进行解除密码保护。

    Sub PasswordBreaker()
    Dim i As Integer, j As Integer, k As Integer
    Dim l As Integer, m As Integer, n As Integer
    Dim i1 As Integer, i2 As Integer, i3 As Integer
    Dim i4 As Integer, i5 As Integer, i6 As Integer
    On Error Resume Next
    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
    ActiveSheet.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 Then
    MsgBox "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)
    Exit Sub
    End If
    Next: Next: Next: Next: Next: Next
    Next: Next: Next: Next: Next: Next
    End Sub

    上述代码在Excel 2013上也是有效的

    image

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  • 原文地址:https://www.cnblogs.com/shanyou/p/3087192.html
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