When you are collecting information to perform a data analysis, Google commands are very useful to find sensitive information and files. These files may contain information about passwords, system fun

The 'site:' operator restricts results to a specific domain, and 'filetype:' is the valid Google search operator for filtering by file extension. Combining 'site:target.com filetype:xls' with keywords like 'username password email' is the correct Google dork syntax for discovering exposed sensitive spreadsheet files indexed by Google.

'domain:' and 'archieve:' are not valid Google search operators, so this query would not function as intended.

'filename:' is not a valid Google search operator - the correct operator is 'filetype:', making this query ineffective.

'file:' is not a valid Google search operator - only 'filetype:' is recognized by Google for filtering by extension.