How do you import Excel BOM data into Aras Innovator open version?

Hello, I currently use the open, free version of Aras Innovator and am having difficulty figuring out how to store BOM data within the tool. I have seen from other posts that subscribers have access to a direct import functionality and also some kind of batch loader. For the latest free version of ARAS, what are the exact steps to import an excel file containing BOM data into Aras? Any help would be greatly appreciated.