User-agent: *
Disallow: /*.xlsx$
Disallow: /*.xls$
Disallow: /*.docx$
Disallow: /*.doc$
Disallow: /*.pptx$
Disallow: /*.ppt$
Disallow: /*.txt$
Disallow: /*.hwp$
Disallow: /*.pdf$
Disallow: /*.zip$
Allow: /