You are downloading the YouSendIt XAP file v220.127.116.117 for Windows Phone. YouSendIt is a free and useful Productivity app: WHAT YOUSENDIT USERS SAY“Being a contractor, many files (drawings, blueprints, pictures) are too large to just email. YouSendIt has resolved ... You can now download the offline XAP file to install & try it.
Download Locations for YouSendIt 18.104.22.1687 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 YouSendIt XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.