Picture the late 90s you are going through sample CDs and you come across the perfect pad sound. This is 30 of them in the form of presets for vital synth which is a free synth that is better than serum. 
Example Video is here: https://www.youtube.com/watch?v=Go0GaeYsS58
To install go to the menu in vital and click import bank find the file and bang you are in!
Get Vital Synth For Free Here: https://vital.audio