You are downloading the Alarm Clock Plus XAP file v220.127.116.11 for Windows Phone. Alarm Clock Plus is a free and useful Productivity app: clock alarm clock smart alarm alarm music alarm clock smart alarm clock classic clock sleep ... You can now download the offline XAP file to install & try it.
Download Locations for Alarm Clock Plus 18.104.22.168 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 Alarm Clock Plus XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.