I prefer to extract my ZIP files in my own defined folder. This is the way I did it:
- Created folder and downloaded 9780470191354_code.zip to it.
- Right clicked 9780470191354_code.zip and selected Extract Here from context menu.
- Selected all chapter ZIP files at the same time, right clicked the selection and selected Extract here. All ZIP files extracted to their own folders.
- Deleted all of the chapter ZIP files but kept the main 9780470191354_code.zip in case I ever needed to extract it again.
Hopefully that helps. You can use WinZip, WinRAR, 7-Zip (free from 7-zip.org) or it can be done using Windows which may not be as efficient. I always use a third party ZIP utililty because I find it easier.