Google Docs Viewer is the best website to view the files online. It can be used directly without downloading and installing Google Docs. Immediately on entering into the Google Docs Viewer site, giving the document internet address a viewer link will be displayed to quickly view that document online.
In the beginning through this Google Docs Viewer we were able to view only Microsoft Office files mostly Word documents, but now through the Google Docs Viewer other application files such as PDF documents, Photoshop documents, Illustrator files, TIFF (Tag Image File Format) files, AutoCAD files, PowerPoint presentation (PPT) files and various other file types can also be viewed online without leaving the browser window. Google Docs Viewer also generates HTML tags to embed documents in a web page.
Gmail users are well familiar with this online document viewer and got used to Google Docs as all the attachments that come in the Gmail messages are automatically linked to it. So, it is enough if we click on any attachment at the end of the Gmail message to open with Google Docs Viewer.
Visit Google Docs Viewer at docs.google.com/viewer
photo credit: NedraI