You are downloading the LightSocial Pro AppXBundle file v2017.703.130.0 for Windows Phone. LightSocial Pro is a free and useful Social app: This is the premium version of the app. If you want the free version, search for LightSocial.LightSocial is a Facebook app that uses less data ... You can now download the offline AppXBundle file to install & try it.
Download Locations for LightSocial Pro 2017.703.130.0 AppXBundle file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline LightSocial Pro AppXBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.