I’ve downloaded the files but can’t seem to open them?
Firstly, make sure you have a working copy of PHOTOSHOP.
Open Photoshop, Go to the file menu and select OPEN, locate your certificate files and select OPEN. The files should start loading inside photoshop.
You may also DOUBLE CLICK the certificate psd files to open, however, you must make PHOTOSHOP YOUR DEFAULT PROGRAM for OPENING PSD FILES.