text/html; w3m -T text/html
text/html; w3m -T text/html -dump; copiousoutput
application/msword; winword %s
application/rtf; winword %s
application/msexcel; excel %s
application/x-msexcel; excel %s
application/ppt; powerpnt %s
application/pps; powerpnt %s
application/pdf; acroread %s
application/x-mspowerpoint; powerpnt %s
application/vnd.ms-project; winproj %s
application/x-tar-gz; tar -tvzf %s; copiousoutput
application/x-tar; tar -tvf %s; copiousoutput
application/x-zip-compressed; zipinfo %s; copiousoutput
application/zip; zipinfo %s; copiousoutput