For purchased products a link will follow after the purchase. The file will be a zip file. You don't open the folder just download the folder.
Go to Tools, Import, Ninjascript Add Ons.
Congratulations you are all set.
Zip File is located in the ABC123TraderInvestorPack zip file. You can get the file on the files page site.
Open The zip file of the ABC123Trader Sound file