Try this: Open any folder in Explorer, go to Tools/ Folder options/ File types. Select
XLS. Then pick Change. The Open With window will open. Pick Browse. Go to /Program
Files/microsoft office/Office 11 and choose Excel. Pick Open. Back on the Open With window
check "always use the selected file to open this kind of file." Hit OK and you are done.
This should work on XP. On Vista or Win 7 there should be a similar routine.

rs

"Michelle" wrote in message
...
: ever since I've installed 2007, all my files will start up 2007 when I
: double -click them.
:
: Can I set up my machine so that:
:
: xlsx will open up 2007
:
: and
:
: xls will open up 2003
:
: Thanks
:
: M
: