I have a better solution for your locked excel file which is eSoftTools Excel Password Recovery Software. This software will give you good results in a few moments. For Excel password recovery, it uses three main methods:- Brute Force Attack, Mask Attack, and Dictionary Attack. And these methods can recover excel sheet password protected very quickly from any excel file including (.xls, .xlsx, .xlsm, .xlsb, .xla, .xlam, .xltm), Also from MS Word file. To get the first three digits of your passwords try its demo version.

Read More - Recover excel sheet password protected