Why does excel considers this two strings as equal

[dfsobral]

hy

accidentally found that excel considers this two strings

!!i
AAA

as equal when (un)protecting a sheet

can someone explain me why? is it just in my pc? could it be some sort of virus?

thanks

 

[VBA Geek]

That is your answer: https://www.thespreadsheetguru.com/blog/2014/8/20/understanding-excels-password-security-methodology

 

[dfsobral]

ok thanks

just become a little worried about protection of my data

will need to learn about encrypting my files, special when sending them to other users