Disable format warning when saving?

[Rob]

I'm using Office 2008 Mac. I've configured my compatibility prefs to
automatically save new files as .xls, rather than the newer .xlsx, as I
work with many, many people who haven't upgraded Office.

Creating and saving a new file is no trouble, but EVERY time I press
command-S to do an incremental save, I get prompted that my preferred
document format "may" not support some feature, and do I really want to
use .xls.

Is there some way to disable that warning, or at a minimum, make it
appear only once per "session" instead of every time I save?

I could conceivably get QuicKeys or something and map command-S to
"save + click a button" instead of "save," but this seems like it
shouldn't be necessary. Any help is appreciated.

Thanks!
R.

 

[drfrot]

I would also like an answer to this question - it's very frustrating!

Rob, have you taken steps towards a workaround, and if so, what? I'd rather not spend money on QuicKeys...

I have tried doing this by recording a new Automator workflow, but even keeping it as simple as "Press ⌘-S" and "Click Yes" seems to fail.

However, this is my first attempt at using Automator for anything, and might be doing it wrong.

G