So for $A2, when it is copied, the column letter will always be A, but the row numbers will change to $A3, $A4, $A5, and so on..
Ya mere, maka $ A2, mgbe e depụtaghachiri ya, akwụkwọ edemede ahụ ga-abụ A, mana ọnụọgụ nọmba ga-agbanwe na $ A3, $ A4, $ A5, na na.