how to add another column to completed spreadsheet?

[wendy]

i have a defined completed spreadsheet that I want to add another column to.
How do I do this?
I am new to Microsoft Excel
wendy

 

[Pete_UK]

Let's say you want to insert a new column D. Then highlight the
existing column D by clicking on the letter at the top of the column,
and then click on Insert | Column. The other columns will move over to
the right to allow a new column D to be inserted. Any formulae on the
sheet will be adjusted automatically to take account of the fact that
some columns have moved.

Hope this helps.

Pete