If you can print a PDF from Noteworthy, you can use PDFtoMusic Pro to create a MusicXML file that Finale, Sibelius, etc. can read. It might be an interesting alternative to the nwc2xml translator. It should be a lot more accurate than the scanning method, even if you use a top-notch scanning program like SharpEye Music Reader. The program is pricy but comes with free updates forever, plus it can sing the lyrics for you. There's a free trial download that works on one page at a time: