If you want to put a line through your text in Microsoft Office programs like Word or Excel, you have to use the Strikethrough feature.

If you wish to to add superscript or subscript in Word, Excel or PowerPoint, then this post shows how to format Text as Superscript or Subscript.

You can add a superscript or subscript in Word using the appropriate buttons in the Font section of the Home ribbon, or through a keyboard shortcut.

In Pages, with text selected, either choose Format > Font > Baseline and then Superscript or Subscript, or press Command-Control-plus for superscript or Command-Control-minus for subscript.