You need a nntp news client/reader that supports nzb files. Basically the nzb file is a pointer to all the messages on usenet that make up the binary file you want to download.Originally Posted by Redan499
So it points to the posts that make up the files and which newsgroup they are in.
Do a google for nzb news reader/client, heaps available. Some free, some not free. Depends what operating system you have.