Animation created with Adobe Flash; may contain text as well as both vector and raster graphics; also may include interactive actions written in ActionScript; plays in Web browsers that have the Flash plug-in installed.
Flash was originally developed by Macromedia, which was acquired by Adobe Systems in 2005. Therefore, Macromedia Flash is now called Adobe Flash.
SWF stands for "Small Web Format" and is pronounced "Swiff."
Program(s) that open swf files
Mac: Adobe Flash Player; Eltima SWF & FLV Player; Web browser with the Adobe Flash plugin Windows: Adobe Flash Player; GlobFX Swiff Player; Eltima SWF & FLV Player; Web browser with the Adobe Flash plugin
Unix: Adobe Flash Player; Swfdec Flash Player; Web browser with the Adobe Flash plugin
Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/swf
