From v11.8.0, Tinderbox files are now saved with additional text information for the used of the experimental Tinderbox Web Reader.
This example shows a single paragraph of unstyled text "Hello world." with text, rtfd, and html tag content:
<text >Hello world.</text>
<rtfd >cnRmZAAAAAADAAAAAgAAAAcAAABUWFQucnRmAQAAAC7hAAAAKwAAAAEAAADZAAAAe1xydGYxXGFu
c2lcYW5zaWNwZzEyNTJcY29jb2FydGYxMzQ3XGNvY29hc3VicnRmNTcwCntcZm9udHRibFxmMFxm
bmlsXGZjaGFyc2V0MCBIZWx2ZXRpY2FOZXVlO30Ke1xjb2xvcnRibDtccmVkMjU1XGdyZWVuMjU1
XGJsdWUyNTU7XHJlZDBcZ3JlZW4wXGJsdWUwO30KXHBhcmRcdHgzNjBcc2I4MFxzYTgwXHBhcmRp
cm5hdHVyYWwKClxmMFxmczMyIFxjZjIgSGVsbG8gd29ybGQufQEAAAAjAAAAAQAAAAcAAABUWFQu
cnRmEAAAAIhdgFW2AQAAAAAAAAAAAAA=
</rtfd>
<html><p>Hello world.</p></html>
The html tag is deleted if the note's $Text is deleted.