If you have a Google account, you can save this code to your Google Drive.
Google will ask you to confirm Google Drive access.
Save file as:
If you have saved a file to Google Drive, you can open it here:
Click the button to create, and add, a CDATASection
The xml file used in the example: books.xml
Note: The createCDATASection is intended for the XML DOM, and will not work for HTML documents.