User-agent: *
Disallow: /data 
Disallow: /outbox
Disallow: /incoming
Disallow: /postinfo.html
Disallow: /*.pdf
Disallow: /*.doc
Disallow: /*.txt
Disallow: /*.xls
Disallow: /*.exe
Disallow: /*.dll
Disallow: /*.ppt
Disallow: /*.pptx
Disallow: /*.docx