Hi Vanessa,
Thank you for posting your query. My name is Clarence, I'll be more than happy to assist you with your concern.
To resolve your query kindly do the steps below.
Highlight the character you want to change (click in the cell and highlight the 2)
Click on the Font Expander (or you can push CTRL 1 for the shortcut)
Choose the Superscript option and click OK.
Go to this link for your reference and other troubleshooting procedures https://www.auditexcel.co.za/blog/how-to-put-m2-in-excel/
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.'
Do not hesitate to message us if you need further assistance.
Give back to the Community. Help the next person who has this issue by indicating if this reply solved your problem. Click Yes or No below.
Best Regards,
Clarence