1. Buka dulu file ms. excel / xls yang terprotect
2. Kemudian tekan tombol alt + F11, maka akan terbuka jendela Microsoft visual basic
3. Pada menu bar klik Insert, kemudian klik Module
4. Copy paste code di bawah ini
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)
ActiveWorkbook.Sheets(1).Select
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)
Exit Sub
End If
Next: Next:Next: Next: Next: Next
Next: Next: Next: Next: Next: Next
End Sub
Klik icon save, kemudian tutup Microsoft visual basic
6. Kembali ke Ms. Excel, pada menu bar klik View > Macros > View Macros
7. Kemudian klik Run
8. Tunggu beberapa saat dan password akan muncul
9. Setelah mengetahui passwordnya tinggal kita buka protect filenya
10. klik file > Info > Protect Workbook > Permissions
11. Klik Unprotect, Masukkan passwordnya dan klik OK
Untuk file xls yang mempunyai sheet lebih dari satu, tinggal ulangi masukan password pada sheet yang masih unprotect
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