It is possible to "crack" 2019 xlsx files?

[miso.dca]

Hello,
I know that it's prohibited to ask how, but I dont care how. I only want to know, if is possible to crack protected xlxs files, because I have some kind of data which I want to protect and now I use rar files with password, but xlsx would be easier to use. I know older files could be easily cracked, but this new protection method could be cracked only by brutal force, am I right? Once again, I dont want to know how could be cracked protected files with password, I want to know if it's possible to do it (without brutal force attack which could be use for sure)

Thx for any relevant answer

[AliGW]

Administrative Note:

Sorry, but your post does not comply with Rule #7 of our Forum RULES:

Don't post questions regarding breaking or bypassing any security measure.

Such threads will be closed and repeat offenders will be banned. This includes posting of links to sites that offer software, code or services to do this or the posting of code to remove passwords.

Thread closed.