You are downloading the Graphing Calc XAP file v22.214.171.124 for Windows Phone. Graphing Calc is a free and useful Education app: Graphing Calc is an excellent, easy to use graphing calculator application. It contains several features not found on any other calculators on the ... You can now download the offline XAP file to install & try it.
Download Locations for Graphing Calc 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 Graphing Calc XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.