The search query filetype:xls inurl:email.xls is a Google Dork, a specialized search string used to find publicly indexed Microsoft Excel files that often contain contact lists or sensitive email data. Understanding the Dork
This specific "dork" targets Excel spreadsheets that are likely to contain lists of email addresses or contact information. filetype:xls filetype xls inurl email.xls
inurl:email.xls: Filters for files that have the specific string "email.xls" within their URL or filename. Why This is Used The search query filetype:xls inurl:email