Excel – compare two or more columns
=IF(AND(B78=P78;C78=Q78;D78=R78;E78=S78;F78=T78);"DA";"NE")
… and dragg…
https://www.ablebits.com/office-addins-blog/2015/08/26/excel-compare-two-columns-matches-differences/
https://support.microsoft.com/en-us/office/using-if-with-and-or-and-not-functions-d895f58c-b36c-419e-b1f2-5c193a236d97?ui=en-us&rs=en-us&ad=us