I have protected my excel file with a password but unfortunately I have forgotten the password, but then my brother recommended for using the Excel Password Recovery Software from
eSoftTools that has hi-tech ways to restore passwords from Excel documents including Excel workbook and Excel Worksheet. Along with this, it can also unlock the password on the single cells in the sheet. It removes all sorts of password combination through multiple recovery mthods, such as, Brute Force attack, Dictionary attack and, Mask attack. I find no difficluty in using this software, since the software is very easy-to-use. A Demo version is even granted to every user that can retrieve the first 3 characters of the password without any cost.
To know more, search in Google: "eSoftTools Excel Password Recovery"