Beginning today, Google Drive will let you quickly preview more than 30 file types and quickly flip between files until you find the one you want.
From the preview window, you can click on the side arrows to flip to other files, watch video files or scroll through multi-page documents. You can even select and copy text from the preview -- even for a PDF. And you have one-click access to share, download, print or open a file for editing.
Learn more about the Drive viewer here: http://goo.gl/0TjAT