Select the text you want to make subscript
Press Ctrl+= on Windows
Press Command+= on Mac
Go to the Home tab
Click the Subscript button in the Font group
Use the Font dialog box and check Subscript
Click OK to apply the subscript formatting
Select the text you want to make subscript
Press Ctrl+= on Windows
Press Command+= on Mac
Go to the Home tab
Click the Subscript button in the Font group
Use the Font dialog box and check Subscript
Click OK to apply the subscript formatting