How about this:
DoCmd.OutputTo acOutputReport, "ReportNameHere", acFormatRTF, "FullFilePathAndNameHere", True
making sure to change the ReportNameHere to your actual report name and your FullFilePathAndNameHere to whatever it would be:
"C:\SomeFolder\MyDocumentName.doc" or .docx if Word 2007 or above.