If you are tired of downloading documents (Spreadsheets, Presentatios, Word, PDF, ZIP etc) and then viewing on your computer then this solution is for you.
After isntalling this extension, you'll be able to view the documents on the fly.
Whenever you'll right-click on the document, an option will be available to let you view the document in Google Docs™ Viewer.
In Google Docs™ Viewer, you can then Edit, Save to Drive or download the file if you wish.
An amazing and useful extension for documents view.