MAGENTO - need to import products with atributes into the magento

Hello, we have few xls files of products with atributes, which need to import into magento store. Current magento version is 1.9.1. SSH Access available. We have csv and xls files that contain information about products and client want to add them into the system. We have 2 kinds of products: simple([login to view URL]) and configurable ([login to view URL]). For simple product we just have SKU, name, price, manufacturer and url (category of the product has same structure like the url components. For configurable products we have 7 attributes sets with different attributes in each and all products urls (so we can generate categories from them) Each product from attribute set should be transformed into configurable product so e.g. user have 1 base product called brushes with 10 attributes color. And on the site this should become to a product with table of attributes which have own price and can be selected. Multiple options is allowed to be selected. Some magento plugin should be used for this purpose. Full describtion will be provided to winner only. In front of your proposal please write "magento", i would like to know if you even read the project post. thanks in advance.