Creat Android App Bundle at Unreal Engine. AAB .pak creating extra chunks

Suffering from how to create AAB in an unreal engine. I am packaging the output blocks of a project as .pak files following the instructions from the documentation.

But then it does not work out at all. What should happen to the files? How to recode chunks and in what format they will turn out. Where to find them.
Google Play forbids uploading files larger than 150, but how to do download the pieces is not clear.