This search operator is a double‑edged tool – useful for security professionals but easily abused. Always align your usage with local laws, ethical guidelines, and explicit permission when dealing with non‑public data. When in doubt, don’t open the file.
Would you like a printable checklist or a version focused on defense (protecting your own site)?
If you are a system administrator, read this section carefully. The fact that this dork works means your organization might be vulnerable. Here is how to stop leaking email.xls files.
This search operator tries to find Excel .xls files that have “email” in the URL/filename (e.g., emails.xls, email_list.xls) and are publicly accessible on websites.
The search string filetype:xls inurl:email.xls is a two-edged sword. For defenders, it is a scanner; for attackers, it is a lockpick. It highlights a fundamental truth of the digital age: Default settings are not security settings. filetype xls inurl email.xls
If you are a business owner, assume that an email.xls file exists somewhere on your network. Find it. Delete it. Secure it. If you are a curious student, look, but do not touch. The line between "OSINT researcher" and "computer intruder" is defined by a single click – the click to download a file you do not own.
Stay curious, but stay ethical.
This operator tells Google to filter results exclusively for files with the .xls extension (the classic Excel format from Microsoft Office 97–2003, though it still captures many modern .xlsx files depending on indexing).
If you run filetype:xls inurl:email.xls (responsibly, or using a tool like Google Hacking Database), the results are rarely just a list of emails. Typically, the spreadsheet contains columns like: This search operator is a double‑edged tool –
Google has been slowly "nerfing" some dorks. They no longer allow searching by allintext:password as effectively as they used to. Furthermore, Google now issues CAPTCHAs for aggressive dorking.
However, the inurl: and filetype: operators remain fully functional. As long as human error exists, dorks like filetype:xls inurl:email.xls will remain a goldmine for reconnaissance.
Attackers are moving toward Bing and Shodan, but Google remains the largest index. The only permanent solution is not to leak the data in the first place.
Q: Does this dork still work in 2025? A: Yes, but you may need to use Google's "Verbatim" tool or use Bing, which currently has fewer restrictions on dorking. Would you like a printable checklist or a
Q: I found an exposed file. What do I do?
A: If the company has a security contact (e.g., security@company.com or /security.txt on their website), email them immediately. Do not share the file or the link publicly.
Q: Can I use this to find my own emails?
A: Yes. Use "@yourdomain.com" filetype:xls to see if your company emails are floating around.
Q: Is Google responsible for these leaks? A: Generally, no. The "Safe Harbor" provision of the DMCA (and similar laws) states that search engines are not liable for indexing content that website owners accidentally make public. The responsibility lies with the server owner.
This article is syndicated under fair use for educational cybersecurity purposes. Always consult legal counsel before performing security audits.