1. Install addon through Blender preferences (installation may take a bit of time)

There are 2 zips included, you may only need to install the latest PSD_Importer.zip however, if it does not work, first install the PSD_Importer_INI to download the pre-requisites, then you can install the latest PSD_Importer.zip

2. Access PSD Importer on side panel (press N to access side panel)

3. Open your PSD

4. Choose layers you want to import

5. If you want to spawn each layer as a plane , click the spawn planes button. Otherwise the layers will be loaded as images textures on the current selected object/material