Export number with leading zero to Excel

[Robert T. Repko (R Squared Consultants)]

I am trying to export data to a comma delimited ASCII file for 
importing into Excel.  I can export the data to a file but when I 
open the file in Excel the leading 0 of any number is dropped.  In 
Excel if I precede a number with an apostrophe (') when I am entering 
numbers the leading zero appears but not the apostrophe.  If I 
precede the number with an apostrophe during the export the 
apostrophe appears with the number in Excel.

How can I keep the leading zero when I open in Excel.

Any ideas gratefully appreciated.
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