You are downloading the TED APPX file v2014.918.125.5412 for Windows Phone. TED is a free and useful Education app: TED's official app presents talks from some of the world's most fascinating people: education radicals, tech geniuses, medical mavericks, business ... You can now download the offline APPX file to install & try it.
Download Locations for TED 2014.918.125.5412 APPX file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline APPX 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 TED APPX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.