Open excel 2007 docs in multiple windows

Remove Excel 2007 annoying you by opening multiple xls files in the same window, this will open a separate instance when you double click an xls file.

My Computer
Tools
Folder Options
File Types
Choose XLS (or XLSX if you want)
Go to Advanced

Uncheck "browse in same window" in advanced window.

Then highlight Open
Edit

Make sure in the Action box it says &Open

Copy the following and paste into "application used to perform action":

"C:\Program Files\Microsoft Office\OFFICE12\EXCEL.EXE" "%1"

Check the box next to use DDE

Remove anything that is in DDE Message box and DDE Application Not Running box.

Make sure the application box says: EXCEL

And in the Topic box it says: System