This is documentation for Mathematica 3, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)
 Documentation / Mathematica / Other Information / Menu Commands / Special NeXT Menus / Notebook Menu  /

▪ Close closes the currently selected notebook.
▪ When you close notebook windows, Mathematica asks if you want to save any changes made since your previous save.
▪ Keyboard shortcuts: F4 ; w w