I am using Excel 2003.

I have a spreadsheet where the data is organised with legal numbering and
then some text. The problem is that the order when using the standard sort is
(for example) 7.1, 7.10, 7.11, 7.12, 7.2, 7.3, 7.31, 7.32, 7.4, instead of
7.1, 7.2, 7.3, 7.4, 7.10, 7.11, 7.12, etc

How do I get excel to recognise that 7.1 should be followed by 7.2 and not
7.10? The options button on the sort dialog box only offers Normal or months
of the year.

Thanks for any suggestions.