[Koha] entering book order into koha 2.2.3

I have a book order from Mackin Books. The order has all the info for the books on a CD. The company puts our school library's individual barcode on the back of each book. I want to enter the whole order into koha. It worked on our Winnebago software. I can scan the school's barcode on the back of the book intoo the winnebago system and all he info comes up. By the way, the regular librarian is away for a year. He is a chaplain in the US Navy Reserve. I am just filling in until he gets back. I have never done this before.