You have two options:
1. In 2007, save the file in Excel 97-2003 format (it's on the Save As
menu).
2. Upgrade you 2003 version to be able to read 2007 files. You'll find the
upgrade on the Microsoft website.

Regards,
Fred

"burtlake" wrote in message
...
I have created several files in Excel 2007 on a new PC using Win 7. But
when
I go to open these files on my laptop (Excel 2003, XP), the file does not
open. I get a message to the effect the file is being converted, but then
nothing happens. What do I do?