How to save and open PGN on Nexus?

I play live chess on here with a Nexus android tablet. I want to save PGNs of my games and open them with the Analyze This chess app. I do Share PGN and get a list of apps to save with. But whichever one I choose, I can never see the PGN in any directories when I try to open it in Analyse This. Can anyone tell me which app to save with and where to find the PGN? Thanks

It seems like the ability to save PGN is broken in the latest version of the app on android. I use to be able to save pgn files and then open them on another program (droidfish), hwoever now it only give me the text of the pgn file and doesn't allow me to save them. Very frustrated with this. And it seems like the app developers don't really care either by the response on this forum.