SWF is a flash animation file format created as a flash development application. In particular, for Adobe Flash. Users of the global network had to watch advertising animations when the picture “comes to life” and changes, you just have to point the arrow of the manipulator on it. This format has gained great popularity in the global network, because it uses videos and banners, as well as special flash-games. Such files usually contain text or animation, in which there are inserts of vector, bitmap images, audio tracks, as well as scripts in the Action Script language. This extension belongs to the category of video files. This format was created in 1995 by the Future Wave Software group of Americans. At that time, Future Splash Animator had the SPL extension. A year has passed. Macromedia bought the extension rights and gave the application a new name - Macromedia Flash. And then, in 2005, this company was acquired by Adobe. It was then that the beginning of the modern history of this expansion was laid. In order to open files with the extension SWF (Small Web Format), you need a special application Adobe Flash Player or a web browser that works with Flash technology. In the browser, Goggle Chrome is a built-in flash player, and therefore there is no need to install anything additionally. Anyone who uses a browser, say Mozilla Firefox, Internet Explorer and others, must install the Adobe Flash module. Creating a SWF file will require Adobe Flash (Professional or Builder).
ASF is a media file format developed by Microsoft. This format is preferred for Windows Media. This player can play not only video or audio files, but also mixed recordings that are compressed using certain codecs and saved in an ASF file. Files of this format also additionally store metadata (including title, author, copyright information). The full original name of the format is Advanced Systems Format. The main goal of Microsoft in developing this format was to provide streaming media playback.