How to install and use Dir open source file manager

This is my first video tutorial

video language : Bangla

It is a very small size software and very smooth too in one word it is the best app for file manager I ever seen.

source : https://play.google.com/store/apps/details?id=com.veniosg.dir&hl=en&referrer=utm_source%3Dgoogle%26utm_medium%3Dorganic%26utm_term%3Ddir+open+source+file+manager&pcampaignid=APPU_1_AepUWoK1MoquvwSlzICwCQ

Thanks for watching the video if any one have any question leave a comment I will reply as soon as possible.