Binary files and the data they contain are used to power many of the experiences on the web, including images, video, and audio. The addition of Typed Arrays, W3C File API , and W3C XMLHttpRequest Level 2 in IE10 enables sites to access the raw binary content of files and other data.
In this demo, you can see the raw binary contents of some sample files from the server and upload local files to view their contents. You can see things like the ID3 header of music files, the JPEG header, the bytes that make up an HTML file, and the MPEG4 headers.
By default, the demo shows how binary image file formats that are not natively supported by the browser, like PCX, can now be rendered in the browser using ArrayBuffer, DataView, and Canvas.