Somehow the "File" and "Edit" menus on the Menu Bar have been removed.

i.e. on the main menu bar, after "EXCEL", you see: "View Insert
Format Tools Data Window Help"

I know how to customize "Tool Bars" by dragging commands to them, but I
have not been able to drag "File" or "Edit" the the top menu bar.

I'm using Excel X for Mac on OS X 10.4.8

Thanks, Jim