You are downloading the PgnViewer AppX file v220.127.116.11 for Windows Phone. PgnViewer is a free Productivity App: PGNViewer is an application to read chess games from files in PGN format. It visualizes the games and moves in an easy to use interface.PGN is. You can now download the offline AppX package file to install & try it.
Download Locations for PgnViewer 18.104.22.168 AppX file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline PgnViewer AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.