You can use Sothink SWF Decompiler V6.5 to convert Flash into HTML5.
Follow the below steps after installing Sothink SWF Decompiler V6.5
1. Load the SWF ito Sothink SWF Decompiler for previewing.
2. Click Export HTML5 to launch the export wizard window. You can select Browse to define the output directory for the new file.
3.Click OK to start the conversion process.