You are downloading the WPDev Resources XAP file v22.214.171.124 for Windows Phone. WPDev Resources is a free and useful Education app: New to Windows Phone development? Here are some resources to help you get ... You can now download the offline XAP file to install & try it.
Download Locations for WPDev Resources 126.96.36.199 XAP file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline WPDev Resources XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.