How elastic store he indexed data

hi dears, i creatd indexed and gotten data using logstash from differents sources but i want to know how the data is actually stored, the directory containing these data, the structure of this data and how to query them in kibna dev console, i suppose that i have an idenx called 'myindex'
thank you so much

This maybe? http://lucene.apache.org/core/8_3_0/core/org/apache/lucene/codecs/lucene80/package-summary.html#package.description