FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Note that in Excel 2013 and later, Alt + F4 will either close the current workbook (if there are many workbooks open), or close the current workbook and Excel itself (if it is the only workbook open).

Detailed explanation-2: -The Alt + F4 is the keyboard shortcut that when pressed will close the currently active Window. It means, if you were playing a game, watching a movie, or working on any document and have accidentally pressed Alt & F4 keys simultaneously, that window would have got closed.

Detailed explanation-3: -The first combo to shut down a laptop with keys is by pressing Alt+F4 together. Once done, a pop-up message asks you to save your current work. Similarly, this method instantly performs the shutdown procedure if you don’t have any existing windows open.