As with any sufficiently popular proprietary file format, gonna bet it was reverse engineered a dozen times by different people independently. But maybe there a

As with any sufficiently popular proprietary file format, gonna bet it was reverse engineered a dozen times by different people independently. But maybe there are official specs, I'm not sure. edit: there is an official spec and it's 243 pages https://www.adobe.com/devnet/swf.html https://www.adobe.com/devnet/swf.html