Hey,
to use the actions, do one of the following:
(before, make sure you have Window > Actions enabled)

1- Instant: Double click the ATN file and the actions will be automatically loaded into Photoshop.
2- Permanent: Copy/paste the ATN file to your (Photoshop root directory)/Presets/Actions.
Then, click on the top-right arrow in your Actions window, and select 'Load Actions...'.
3- Click on the top-right arrow in your Actions window, select 'Load Actions...' and search for the ATN file.

Thank you purchasing this file!
Enjoy.