drop dpwn tables in excel

hi, i working on a little spreadsheet and would like to insert a drop down table, tht allows some pre-written answers to be inserted into a cell, for example : under the heading 'type of order', the correct answerss would be 'model', 'tool' , 'base'. how do you insert drop down tables.
thanks
john

Have a look here: http://www.meadinkent.co.uk/xldropdown.htm

One way is to use Data Validation - here you can define a list of
acceptable responses and specify that you want the entries in the cell
where you have DV to choose from this list.

Hope this helps.

Pete