When VsPrinter8 is exported to HTML and RTF File, all elements placed in a document are not translated into HTML or RTF. Graphical objects, text boxes, headers, footers will not translate, nor will RTF text translate into HTML. Most other elements will, including regular text, paragraphs, tables, and all character formatting.
This is given the help file at :
If you want to export then add some regular text like Paragraph to the VsPrinter and then the rtf will be generated with the paragraph. You can use the following code to generate an RTF :
.ExportFile = App.Path & "1.rtf"
.ExportFormat = vpxRTF
.Header = "header"
.Paragraph = "Text in tables exports to PLAIN RTF"
Let me know incase you have further queries.