Bob Lendrim asked:- "For some reason the columns are no longer labelled A, B, C, etc. They are now labelled 1, 2, 3, etc. I don't know how I did this and would like to change it back to the customary letters." Have a look at the menu items:- Tools/Options then the "General" tag Remove the tick from R1C1 Reference style and you will be back in business. Some early spread sheets came with this reference style and even now it can be useful when working with macros and switching between columns a large distance away from each other. Easier to calculate in numbers than it is to count letters. Regards Tony Tony Beckett - Rutland, UK The NOSPIN Group is now offering Free PC Tech support at our newest website: http://freepctech.com