You are downloading the Notepad Rich AppX file v220.127.116.11 for Windows Phone. Notepad Rich is a free and useful Productivity app: Notepad Rich enables you to create and view colorful and stylish rich formatted documents on your phone. Works like a mini Office Word, but much more ... You can now download the offline AppX file to install & try it.
Download Locations for Notepad Rich 18.104.22.168 AppX file
Note: To install it manually from an SD card, you should choose one of the server location above to get the offline Notepad Rich AppX file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.