Place the tpl file into Photoshop’s Tool Presets folder.
- It will be something like Adobe > Photoshop > Presets > Tools; Or Applications > Adobe > Photoshop > Preset > Tools.
- Load the brushes via Tool Presets Panel: Open Photoshop, go to Window > Tool Presets, click on the little icon upper right from the Tool Presets Panel.
- Click on the file name (Inkers, Pencils, Essentials...), replace or append the Tools (Brushes).
- Uncheck the option "Current Tool Only" from Tool Presets Panel bottom.
Regards!