You are downloading the Random Timer XAP file v18.104.22.168 for Windows Phone. Random Timer is a free and useful Sports app: This is the free version of the Random Timer. The premium version also has Save/Load functionality and is called: "Random Timer (Reaction ... You can now download the offline XAP file to install & try it.
Download Locations for Random Timer 22.214.171.124 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 Random Timer XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.