MS Office Instant decryption

[rsberzerker]

because you probably should use the collider mode 9710 (with mask ?b?b?b?b?b) for instant access to the data

Here's a post by Atom with a more detailed explanation -> https://hashcat.net/forum/thread-3665.html . And it does mention: "...Problem is that in theory even by iterating through 2^40 combinations it's not guaranteed to find at least one matching one. But I believe there's still a good chance as it's only the first 5 byte we need to collide..."

So collider mode MIGHT not work 100% of the time if I am reading this correctly. Still, it's quick to try, so why do it the hard way if you don't have to.