exporting in wrong cell format

I have a column with a custom format of 09252009 , and it displays that way. When I click on the cell though, the actual data shows as 9/25/2009 up at the top. So, when I am trying to export to a fixed length format, the field exports as 9/25/2009 instead of 09252009.

How can I make the format export like I want it in the custom formatting.

I tried searching forums, but, keep getting errors.

Thanks for all help
Matthew