Open Excel in new window Excel version 2010

[tiggynook]

I'm sorry if this is a duplicate post but I can only find solutions for other versions and it doesn't apply.

I am working in Excel 2010. I would like excel to open each spreadsheet in its own instance and not within the same window.

I have gone to: File/Options/Advanced/ checked "Ignore other applications that use Dynamic Data Exchange (DDE)"

This works only if I keep all my spreadsheets open. Once I close them all and try to get back in I get the error "There was a problem sending the command to the program". It only allows me to open a blank new spreadsheet, not a previously saved one.

How can I make excel open all my files in a new window when I double click them, and keep this setting?

Thanks for any help!

[daffodil11]

You'll need to edit your registry to completely remove the DDE option.

http://social.technet.microsoft.com/...pdeploylegacy/