Google’s Chromecast allows you to send anything you can view in a Chrome browser tab to your PC. You’re not limited to just web pages, as Chrome can play local videos and music files and display PDFs and Office documents.

Sure, you could Chromecast your entire desktop, but this is an all-around cleaner solution that allows you to cast only the content you care about and switch between browser tabs, doing other things with your computer while one tab streams.

via How-To Geek http://www.howtogeek.com/170659/chromecast-more-than-web-pages-4-types-of-files-you-can-view-in-chrome/