I would recommend you to use the most secure software and that is eSoftTools Excel Password Recovery software. I would recommend using it to recover Excel password protected file. With this you can recover your Excel password. It does not matter if you lose your Excel password. With the methods of this software, Brute Force Attack, Mask Attack and Dictionary, you can recover that as well. After downloading it, you can also try its free demo edition.

INFO;-Recover Excel password protected File