Hi wooperson, that blank screen is likely a server timeout that your server is forcing or all memory has been eaten up and the server has dropped the export session; happens in large exports of 1000’s of Products. Boosting memory and looking at increasing that timeout limit helps get around that issue. See more here.
http://www.visser.com.au/documentation/store-exporter-deluxe/usage/
We’ll be announcing a free upgrade this year for Product Importer Deluxe called Store Importer Deluxe to import Orders, Users, Customers and more from our Store Exporter Deluxe Plugin 🙂
