Explanation

F9 is the shortcut key used to update selected fields in many software applications, including Microsoft Excel, Word, and other productivity tools.

When you press F9, the application will recalculate and update the selected fields, such as formulas, formatting, or data.

• F5: Refresh or reload the current document, window, or application.
• F7: Spell check or grammar check the current document.
• F11: Toggle full-screen mode on or off.
• Ctrl + F9: Opens the "Insert Field" dialog box in Microsoft Word.
• Shift + F9: Opens the "Update Field" dialog box in Microsoft Word.