You are downloading the Webapp Maker AppXBundle file v2018.414.234.0 for Windows Phone. Webapp Maker is a free and useful Productivity app: Webapp Maker allows you to convert your favorite websites to apps. Do you want to create a shortcut to your favorite restaurant's website? This app ... You can now download the offline AppXBundle file to install & try it.
Download Locations for Webapp Maker 2018.414.234.0 AppXBundle file
Important Notice: Now Due To Unspecified Limitations, You Can Not Use The Offline AppXBundle 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 Webapp Maker AppXBundle file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.