Convert Swf to Html5
This article gives a good overview of methods for conversion and the problems involved:
If your Flash movie is simple (text, images, and shapes with basic morphing), conversion to Html5 has a high likelihood of success. If there is action script in the movie, the likelihood of a successful conversion is much less. Other approaches are to convert the Flash movie to an animated GIF, AVI, or MP4 movie. This only makes sense if the Flash movie is not interactive (doesn't contain buttons or links). The quality of the movie is lost in the conversion to other video formats and the resulting file size may be quite large.
Converting a SWF file to Html5 in KoolMoves or KoolShow animation software begins with selecting the SWF file (File > Import SWF Movie).
If you can import as an object in KoolMoves Flash export mode, you can't edit the Flash movie but it will play like an animated GIF within the exported movie.
If you import as an editable movie (which is the only supported import method for Html5 export), KoolMoves or KoolShow will convert as much of the SWF as it can. The individual objects and frames extracted from the Flash movie can then be edited within KoolMoves or KoolShow. Most likely some aspects of the movie will be missing. If you want to export as Html5, make sure the export mode (upper right) is set to Html5 Animation.
This short YouTube video explains how to import a Flash movie for conversion to Html5.