Hi,
you can use the way below to get the rtf format of the editor content.
RTE.Convertor.RTF.HTML2RTF content= new RTE.Convertor.RTF.HTML2RTF(editor1.Text);
t1.Text = content.RTF.ToString();
and you can use the code below to load the rtf format content into editor, it will covers into html.
RTE.Convertor.RTF.RTF2HTML content2 = new RTE.Convertor.RTF.RTF2HTML(t1.Text);
editor1.Text = content2.ParseRTF();
Regards,
Ken