If you are looking for the decompiler itself, visit https://github.com/jindrapetrik/jpexs-decompiler
List of issues
: The issue tracker is now writable again and logged users can download files too. But note that our support is very LIMITED.
#1582 Cannot load swf
The window still says cannot load swf file. No matter how many versions I use with this, it does not open some SWFs.
Are you sure that it is realyl an SWF file? What is the first 3 bytes of the file? Is there any error message?