Hi
AFAIK you can't turn this dialog off. It should appear anyway

--
Regards
Frank Kabel
Frankfurt, Germany
"Kathy4080" schrieb im Newsbeitrag
...
How do I get back the dialog box when closing an unsaved spreadsheet. I
used
to get a prompt that said something like "you will lose unsaved changes,
do
you wish to save?"

I clicked this box off, but now I cannot find how to turn it back on.