You are downloading the MOS XAP file v18.104.22.168 for Windows Phone. MOS is a free and useful Productivity app: Switch to four kinds of operating system UI now! amazing ... You can now download the offline XAP file to install & try it.
Download Locations for MOS 22.214.171.124 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline MOS XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.