How can I open application's windows on dock separately like Windows 7?
Pretty sure this isn't possible as I don't see a way in settings, here are some workarounds:


Minimized windows will show up in dock if "minimize windows into application icon" isn't checked in dock preferences (right click on dock to pull them up).
If all windows are not minimized you can swipe up with three fingers to show all windows. You can also cycle through windows by pressing command + `
Right click the excel icon in dock to display all open workbooks.