Your code is placed in a link that was in your Order at the time of the checkout and in an email sent to the address entered with your order under the 'Licenses' section near the bottom.
By clicking on the link, your gift certificates will be downloaded directly to your computer in order for you to view and print them. The location where your downloads are stored vary based on the browser and settings used. In order to find the default download folder for your specific web browser please follow the corresponding link.
Each web browser has a folder on your computer where it stores downloads. If that folder has been changed, the certificates will be download to whichever folder it was changed to.