You cannot change the top a-z nor the side row numbers.

 

You just put  your titles in whichever row (eg 1 or 2 etc) along the top.

 

To automatically add a column, click in the next empty cell at the bottom and then if it's excel, scroll along to where you see a strange E and/or it says Autosum

 


Click on that.

 

It will then automatically highlight the above cells in that column.

 

Click enter

 


********************************************************************************
My body is an old warehouse full of declining storage, my mind is a dusty old reference library, strictly for members and archaeologists only