Assigning Unique numbers in Excel XP

[Guest]

In Office 97 I could assign a unique number on a worksheet. How can I do this in Office XP?

 

[Jim]

Can you be more specific as to what you want to do?

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In Office 97 I could assign a unique number on a worksheet. How can I do

this in Office XP?

 

[Guest]

With Excel 97 I received a template for creating Invoices. One of the features on that form was to assign a unique number to it through an icon titled "Assign a Number" which was part of the "Invoice" toolbar. In Excel XP I can neither find the "Invoice" toolbar nor the "Assign a Number" icon in the custom a toolbar list

If you can help, it would be greatly appreciated by me.