You are downloading the Explorer 4 Facebook XAP file v22.214.171.124 for Windows Phone. Explorer 4 Facebook is a free and useful Social app: Fb explorer is a beautiful app to explore all your profile on Facebook.With it you can check and post new posts, check your messages, ... You can now download the offline XAP file to install & try it.
Download Locations for Explorer 4 Facebook 126.96.36.199 XAP file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline XAP File To Install It Any More.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Explorer 4 Facebook XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.