Checked my analytics today and saw that two days ago I made $325 in revenue! It was cool to see because I did absolutely nothing to accomplish this and didn't even know about it for two days. The traffic came from organic search and the user just clicked the "instant download" button to buy immediately.
I didn't actually think that anyone would buy a $300+ spreadsheet from an organic search to a random site without ever communicating with the seller.
I would love to find more customers like this. I emailed the customer but got no response. He signed up with his personal email so I can't tell what company he works for. However he hasn't responded with any complaints so I assume he's happy with the purchase.