Answered By: Rajen Munoo
Last Updated: May 26, 2016     Views: 103

Google allows you to refine your search by file format (e.g. pdf, ppt, xls, doc)

Try this: cloning filetype:pdf or "global warming" filetype:doc or "corporate social responsibility" filetype:ppt

You will notice all your results will be in in the format indicated in the search. You can find useful reports, government papers and policies etc this way.

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