You are downloading the InMind VR AppxBundle file v2015.412.1029.3241 for Windows Phone. InMind VR is a free Educational Game: InMind is a short adventure with arcade elements designed for the Windows Phone based VR. You are able to play with Cardboard viewer or without it (just tap. You can now download the offline AppxBundle package file to install & try it.
Download Locations for InMind VR 2015.412.1029.3241 AppxBundle file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline InMind VR AppxBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.