Tell me more about stream reconstruction
 
You can change the display format to raw data, packet headers, or packet headers with links to any files that were reconstructed (which is the default setting). You can also have Observer display only the links. To change the format, right click anywhere on the reconstructed stream display and choose Format from the popup menu, then the format option you wish to apply. Where links are displayed, clicking on them opens the file using the default application for the particular file type. For example, HTML files will be opened in your operating system’s default web browser.