Including "link" in the search string helps refine the results to pages that are often linked from other directories or are part of public directory listings, increasing the likelihood of finding downloadable, public-facing spreadsheets. 2. Why Use This Specific Search Query?
If you specifically want files with email in the filename:
Organizations and automated systems frequently export contact directories, marketing databases, subscription lists, and employee rosters into Excel formats. When web administrators or users carelessly upload these files to public-facing web servers—or fail to configure proper access controls—Google’s web crawlers find and index them.
Note: While robots.txt stops ethical crawlers like Googlebot, it does not stop malicious scrapers. Authentication remains your primary line of defense. Apply 'Noindex' Meta Tags