Preview/show function for fileshare widget

At the moment fileshare widget list view works in a way that you need to download the file to your computer before being able to open it and see the content. 

Some sort of preview/show function for the file would be awesome, i.e. to be able to see the content without or before downloading it to one’s computer. Maybe having the option to open the file in full screen, if possible depending on the file format, and then downloading from that view.