Flodo allows you to view multiple document types without the need for software installation and opening applications.
Preview the document is executed by the browser without having to download the file locally and running applications to view it beyond document repository. Work is convenient and fast when you do not switch windows.
Google Drive that is used to write Flodo has a built-in browser of many types of documents. Major formats for office word / excel, graphic formats, images are displayed in the browser window. Documents which for various reasons can not show up can be downloaded to a local drive to open the correct application.