Mass Import CSV and XML

There is a major requirement for Ubercart 3/ Durpal 7 to allow mass imports simply for csv and XML. I have not found any easy and robust ways to import a simple csv into the products. There are a lot of store owners who don't want to manual enter products into products through content types. They just want to update a spreadsheet or download a price list from a supplier add there markup and load it into the shop.