It was a paid extension, but it was developed quite a long time ago and supports only the outdated version of opencart (1.5.x). The code of extension is far away from perfect, but currently we have no resources to improve or even to maintain this version of the module further. At the same time it is still can be useful for somebody, thus we made it free. However, as a free extension, now it also comes with no warranty (and with no guaranteed support).
For all those who have already purchased this module, our support obligations remain valid (we provide support for them as usual).
The module is designed to provide ability to generate products feed for Shopello (www.shopello.se)
We also recommend:
Related Options - if you need to combine options and set stock, price etc for each combination.
Related Options PRO - improved premium version or Related Options module, which allows to create different combinations of options values per one product.
Product Option Image PRO - if you need to set a few images for each option value and change product images dependent on selected options on a product page
Parent-child Options to show/hide child options (options groups) depending on selected parent options values.
Live Price to live price update on product page, depending on selected options
Live Price PRO improved version of Live Price module, which allows not only to dynamic price update depending on selected options and quantity on product page, but also to set global discounts and specials, to set discounts and specials in percentage and more pricing features
Contact for support, questions and suggestions: email@example.com