From SearchDay, we learn of Google's filetype: operator, which lets you search by file type. For example, you can search for PostScript (ps), PDF, MS Word (doc), MS Excel (xls), MS PowerPoint (ppt)and Rich Text Format (rtf). Of course Google can search many more file formats. Our French-speaking friends at pssst have come up with a list (English translation via Google).
Be sure to check out Advanced Google Search Operators for more useful operators like this one.
Posted by Aaron Swartz on April 08, 2002 03:33 PM