文件加密后，你只能看却无法修改，咋办呢？下面就交给你破密。

第一步

将.xlsx文件转化成.xls文件，如果你是.xls文件就不用转化了，之后最好用excel打开（后面的操作要打开开发者工具， wps要花钱）

第二步

打开excel开发者工具里的visual basic

第三步

点击上面的插入按钮，选择模块选项

第四步

写入代码：

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
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 ActiveWorkbook.ProtectStructure = False Then
MsgBox "密码是: " & 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

第五步

点击运行（上面有个绿色的三角形），等待几秒就会跳出密码，复制密码，解除限制就行了。