oXygen XML Editor v.19 can be downloaded here.
Please use the following license key for the use of your home assignments and enter the below 9 lines of text when prompted to “Use a license key” during installation:
------START-LICENSE-KEY------ Registration_Name=Tim Kay Company=Queen Mary University of London Category=Academic-Site Component=XML-Editor, XSLT-Debugger, Saxon-SA Version=20 Number_of_Licenses=1 Date=10-15-2018 Maintenance=698 SGN=MC0CFQCHkh9aTv+F9o3N+On2jwKAFI/jpAIUPLNVVXd+Is/AwXGrK0aiMxB8fQw\= -------END-LICENSE-KEY-------