Can I save all data?

So, i decided to change my JohnCMS version from 5.x.x to 4.x.x as people kept saying that older version is more comfortable for me. But here is the problem: can i change the version without deleting data from my site (e.g. Users, library)? And how am i supposed to do that?

TalkingTom, do export of library and users tables from 5 version and then delete them from 4.4 and import

TalkingTom, use official script update