This is the full collection of my mat & frame actions in addition to my retro 35mm slide action. Included instructions are still valid for Adobe Photoshop CC 2019 as far as set up and use.
RAD Mat & Frame 2.0
The actions come in a zip file. After unzipping, you can save them anywhere on your hard drive and then load them into Photoshop. They do not have to be in Photoshop's default actions folder.