Maps.ME database

What is format of Maps.ME database ? There are compressed files divided into regions.
First, I want display this database information on Windows PC. How download it?
Next, I want try display it in my Android application - is possible shared folder for Map.ME data and my application data to avoid duplicate large data.

Maps.me is open source, and the source is in github.
For your first question, see https://github.com/mapsme/omim/blob/master/docs/MAPS.md