How can I open a swf file
How can I open a .swf file on my iMac?
iMac (27-inch, Late 2013), macOS High Sierra (10.13.5)
It's a Flash video file. You can drag and drop it into an open browser window to play, assuming you have Adobe's free Flash Player installed.
Adobe Flash Player Install for all versions
The free VLC Player will also open one.