I was working on an excel 2003 spreadsheet, in Windows XP, and I had
to check an email for billing purposes. In the email there was a
another spreadsheet that I opened. I printed it and then closed it.

It asked me if I wanted to save the changes and I said no because that
also changes the date of the file and I wanted to leave it at the
original date.

Then I realized that I closed all the Excel files, including the one I
was working on and didn't ask to save the updates. I have a feeling I
know the answer to this but, is there anyway to get that spreadsheet
back. If not, how can I prevent that from happening again. In the
Excel save options, I do ask to retain a copy after 10 minutes but
once I say don't save the changes, isn't that gone too.

Is there no failsafe way to protect these spreadsheets form a
momentary loss of concentration? Is it any different in Excel 2007?

Alan