一、点击“宏”→“录制宏”，出现“录制新宏”窗口，在“宏名”定义一个名称，点击“确定”退出；
二、再点击开发工具中的“宏”，选择定义的宏名称并点击“编辑”，打开“Microsoft Visual Basic”编辑器，用如下内容替换右侧窗口中的所有代码并保存；
1 Sub PasswordBreaker() 2 Dim i As Integer, j As Integer, k As Integer 3 Dim l As Integer, m As Integer, n As Integer 4 Dim i1 As Integer, i2 As Integer, i3 As Integer 5 Dim i4 As Integer, i5 As Integer, i6 As Integer 6 On Error Resume Next 7 For i = 65 To 66: For j = 65 To 66: For k = 65 To 66 8 For l = 65 To 66: For m = 65 To 66: For i1 = 65 To 66 9 For i2 = 65 To 66: For i3 = 65 To 66: For i4 = 65 To 66 10 For i5 = 65 To 66: For i6 = 65 To 66: For n = 32 To 126 11 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) 12 If ActiveSheet.ProtectContents = False Then 13 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) 14 ActiveWorkbook.Sheets(1).Select 15 Range("a1").FormulaR1C1 = Chr(i) & Chr(j) & Chr(k) & Chr(l) & Chr(m) & Chr(i1) & Chr(i2) & Chr(i3) & Chr(i4) & Chr(i5) & Chr(i6) & Chr(n) 16 Exit Sub 17 End If 18 Next: Next: Next: Next: Next: Next 19 Next: Next: Next: Next: Next: Next 20 End Sub
三、再点击“宏”，选择定义的宏名称并点击“执行”，密码就出来了。