xl2003 should be able to be forward compatible whereas 2007 may ?? NOT be
backward compatible.
You should?? be able to just save as an .xlsM fileclosereopen in xl2007.

--
Don Guillett
Microsoft MVP Excel
SalesAid Software

"tkelly" wrote in message
...
I have built a spreadsheet in 2003 with macros, advanced filtering and
vlookups. I open it 2007 compatibility mode, but have found as I develop
the
spreadsheet further I am being warned of more compatibility issues. I
need
to be able to use all the 2007 features to move forward so how do I
convert
what I already have from 2003 to 2007? Is it as simple as changing the
Save
As format to Macro Enabled Workbook? I don't want to re-create everything.
Thanks!