Excel columns

[Matt_Benge]

This may be a dumb question but columns used to be labelled with letters and I could create formulae easily.  Now my columns appear as numbers and don't know how to refer to particular cells.  For example if I want to add the cell in the first column and first row to the cell in the first column and second row I used to write = A1+A2 or =$a$1+$a$2.  What do you do now columns are relabelled with letters?  Am not sure how to write formulae now columns are also labelled with numbers.

[#2]

@Matt_Benge That's called "R1C1 referencing style". You can switch it back to what you are used to in Options.

[#3]

You need to switch back to Row Column Ref Style R1C1 by ALT T O F > Working with formulas

i think @Riny_van_Eekelen had said all already

[#4]

@Riny_van_Eekelen 

Thanks very much Riny.  That is very helpful.

Best wishes

Matt

[#5]

Much appreciated Donald. Very helpful.

Matt