Download and install the Compatibility Pack so's you can open 2007 files in
2003.
http://support.microsoft.com/kb/923505
Just note that 2007 files opened in 2003 will have the columns and rows
limits of 2003.
Gord Dibben MS Excel MVP
On Sat, 14 Nov 2009 10:39:01 -0800, JimmyCorn
wrote:
How do I open an XLSX format file with my 2003 Excel? It doesn't recognize
the format.