You are downloading the Fast - Social App XAP file v1.0.0.0 for Windows Phone. Fast - Social App is a free Social App: Fast is an alternative and free client to manage your Facebook account! Fast gives a great and full experience even to the less powerful device! You can use it. You can now download the offline XAP package file to install & try it.
Download Locations for Fast - Social App 1.0.0.0 XAP file
Package File
Please Click Here > to retrieve available package files for Fast - Social App.
Please be aware that the Fast - Social App XAP file you are to download is hosted on the Microsoft Store CDN server. You can read more about Fast - Social App or get it on Microsoft Store.
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Fast - Social App XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.