... Unlocking Google's Hidden Potential GUIDESUpdated 2006 Edition Parts 1 - 5Thus, a query of “frozen ~vegetables ... a search result is a PDF file, Word document, PowerPoint file, or Excel document, you can click on View as HTML to preview it as text extracted from the document. 15. Translate This PageThe ... 51. filetype:You can restrict your search to Word documents, to Excel documents, to PDF files, or to PowerPoint files by adding filetype: doc, filetype:xls, filetype:pdf, or filetype:ppt, respectively,...