How can I move the open command to the top of the file menu?
How did you move it down?
You can either go to Tools > Customize... > Menus tab and hit "reset all" on the top left.
Go to Tools > Customize... > Menus, find Open.. in the Command list and select it so that it is highlighted. Go to the Position on menu: drop down and pick &New.. and click the "Add Below" button on the top right of the windows (it will appear where the Rename button is in this image. Click ok on the dialog and it should be back to where you want it.
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