I was looking round for quite a while trying to find a free extension that was simple and did the job well. Having tested many and not satisfied with them, I thought I would go along with a paid extension and found Quicksell File Seller. I took the risk, purchased it and found it extremely easy to set up.
I had a support request regarding a PayPal issue and the developer helped me very quickly and in a professional manner, so a big thanks to him for that.
Quicksell File Seller is comes at an affordable price, is well worth the money and I would highly recommend it.