Import a Library in iTunes 8

In iTunes 8, there's no longer a File > Import... item in the menu.

If you want to import a library XML file — after re-installing your system, or when moving the library from another computer, for example — you can use the File > Library > Import Playlist... menu item.

It's confusing, since there is a File > Library > Export Library... command, and it's not obvious that you export a "Library" but import it back as a "Playlist".