There are several ways in which you can open and play SWF files on Mac. One of the best ways to open SWF files online is by using an online browser plugin solution. You can download one of the leading browser plugin solutions and enable them to play SWF files online, like Cloud Flash Player and Puffin. However, if you are using Google Chrome as your browser, then you are in for a treat because it has an in-built Flash Player called the PepperFlash. All you need to do is ensure that it is enabled (check through Plugins in Settings). It will help play all SWF files online automatically without any problem. Read further to know how to open or play SWF files on Mac.