Once you have downloaded the presets:
When you have downloaded and extracted the ZIP-folder with the presets, go ahead and open your After Effects folder, go to "Support Files" and click on "Presets" then drag the "Freesets (29)" folder into the "Presets" folder.
When you have downloaded and extracted the ZIP-folder with the presets, go ahead and open your After Effects folder, go to "Support Files" and click on "Presets" then drag the "Freesets (29)" folder into the "Presets" folder.
If you can't find the presets in After Effects, then close the program and open it again.
The presets should be located under the " *Animation Presets" folder in the "Effects and Presets" panel in After Effects.