Select the text (or place the cursor) where you want the subscript
Go to **Home** tab
In the **Font** group, click the **Subscript** button (xâ‚‚)
If you don’t see it, open **Font** settings:
Click the small launcher in the **Font** group
Check **Subscript**
Click **OK**
Keyboard shortcut:
Select the text
Press **Ctrl + =** (toggle subscript on/off)