Thanks for contacting us! To import the downloaded file, you just need to follow these steps: https://www.snapeda.com/about/import/#Altium
Please keep in mind that before importing the .lia file you have to make sure the P-CAD importer is installed. To do so, follow these instructions here: http://blog.snapeda.com/2019/03/20/how-to-install-the-p-cad-importer-in-altium-designer/
Let us know if you have any other questions!
Answered 1 year ago.