hi mscarolina, i m not sure what u want to do. however my suggestions are :
1. If u r trying to copy the same formula (not being constant) simply drop
down the cell value or copy and paste the cell and paster over the entire
column.
2. If u r trying to copy the formula with constant reference or formula,
try using $ sign in the formula & copy and paste the cell and paster over the
entire column.
for any further assistance, give the full details of the case