How to recover a specific version of a Keynote file that was accidentally overwritten?

Hello. I worked in keynote, every time I saved new changes in the file. Then when I wanted to open the same file, I couldn't find the file saved for the period I saved last time. The program gave me a period 4 days later. I can't find my last saved document anywhere in the previous editions of the program. Although I know for sure that it was, because I later converted it into PDF.

How can I return a file from a specific number? Where are they still saved even if they are accidentally deleted?

Thank you.

[Re-Titled by Moderator]