This system email sends a digital download button/ link as shown below.
Email Subject: {first_name} Your export is ready!
Sender Email: the email address you added under Applications> Email Server
Once your customer clicks the download button, they are taken to your system download page where they will be able to download the file - see the page below.
You can update your system download page by going to Builder ➡ Pages ➡ System Pages ➡ Download Ordered File Page