The Amazon Shop app can't be removed from the Kindle. If you want to erase your information, you can reset the Kindle to factory settings, but you can't remove the shopping app altogether.
If you are using Windows 10 (the OS used for this article), right-click the file and select "Open With". Select "Choose another app"; Notepad should be on that list.
The new Edge is chromium type so go to settings and search import. Click on import browser data, select your profile and old browser. Select what you want to import...