Explanation

Alt + F4 keyboard shortcut to close an app or program on Windows

Confused question

Ctrl+F4 is the shortcut key to an application or a window

Alt + F4: Close the current app or window.

Alt + Tab: Switch between open apps or windows.

Explanation

Ctrl + N shortcut key used to Create a new presentation document

Ctrl + M shortcut key used for Insert a new slide

Ctrl + S shortcut key used to save a presentation

**

Explanation

Superscript & subscript are known as Font effects.

Superscript is used to create small letters above the line of text.

Subscript is used to create small letters below the line of text

Subscript shortcut key: Ctrl, Shift + Plus sign (+)

Superscript shortcut key: Ctrl, Shift, and the Plus sign (+) at the same time.

Explanation

Ctrl + Shift + F is the shortcut key for “Change the font" in MS Word.

Open the Font dialog box to change the font. Ctrl+Shift+F.

Increase the font size. Ctrl+Shift+>

Decrease the font size. Ctrl+Shift+<

Increase the font size by 1 point. Ctrl+]

Decrease the font size by 1 point. Ctrl+[

Explanation

The F12 key used for 'Save As' 

But Ctrl + F12 will open a document from File Explorer.

Shift + F12 acts in the same way as Ctrl + S to save the document,

Ctrl + Shift + F12 will print a document with the default settings. 

***