You are downloading the Gestures Beta XAP file v18.104.22.168 for Windows Phone. Gestures Beta is a free and useful Productivity app: "Welcome to Gestures ! With Gestures you can control some of the functionalities of your phone without touching the display. ... You can now download the offline XAP file to install & try it.
Download Locations for Gestures Beta 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 Gestures Beta XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.