Not really sure what you mean but I'll try to help you understand. You
don't import data files with Office software to open them. You just click
on File, Open and they should be useable.
All files created in Office 2003 should be able to be opened in the same
type of program in Office XP (Word-Word, PPT-PPT, Excel-Excel.) There are
some features in newer software that are not included in older versions and
this may prevent a file created in a newer version from "working properly"
in the older software. This may really be a problem with PPT and Excel.
If you are talking about Outlook names and data, you need to ask your
question in one of the Outlook groups microsoft.public.outlook is one of
them.
Hope this helps.