You are downloading the Sketch It XAP file v1.1.5410.0 for Windows Phone. Sketch It is a free and useful Productivity app: Sketch It is the easiest sketching application. Sketch without complex brush choices and settings on either an empty canvas or on a photo or a map. ... You can now download the offline XAP file to install & try it.
Download Locations for Sketch It 1.1.5410.0 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 Sketch It XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.