Export to Zotero?

I’m new to Zotero and would like to export many of my DTPO files to Zotero to take advantage of the reference scraping it can do. I have my pdfs stored externally to DTPO as well as internally, so they are taken care of. But what about all my RTF notes and other kinds of data? How do I get them into Zotero?

One possibility might be to convert the documents to PDF, e.g. via this script: