UndoPDF XLSX Password Breaker can help those who have forgotten their XLSX passwords but need to access their Excel files urgently. UndoPDF XLSX Password Breaker has the capacity to break XLSX passwords for the files that are created by MS Office Excel 2007-2010. Of course it can also break passwords for files in other Excel formats and created by earlier versions of Excel. Compared with the earlier version, the protection in MS Office Excel 2007-2010 is much stronger; hence, it is harder to break XLSX passwords in the latest versions than to break XLS passwords in earlier versions. To guarantee the success of breaking XLSX passwords, UndoPDF XLSX Password Breaker provides three solutions: the dictionary attack, the brute-force with mask attack, and the brute-force with mask attack (trying all possible combinations).

You can free download the Trial Version of UndoPDF XLSX Password Breaker and use it free for 20 times. In case you want to have this application, please read the price list at the end of this article first, and then click Full Version

Based on the fact that most people like to use words or word combinations as passwords, the dictionary attack is provided to try all the words in a built-in dictionary. Users can also add new dictionaries to the application. If users can remember any part of a lost XLSX password, or any information about their lost XLSX passwords like password length, they can try the brute-force with mask attack, which can save a lot of time. If users do not remember any information, they can depend on the brute-force with mask attack (trying all possible combinations), which will try to use every possible combination as a password.

The interface of UndoPDF XLSX Password Breaker is user friendly. You can click buttons to select options and view the password breaking status in the interface. For example, in the Log window, you can view the start time and finish time of each event. Under the Log window, the current password and speed are displayed. The following is the illustration of the interface of UndoPDF XLSX Password Breaker.