Thanks - that looks handy.
It is a pity that Microsoft didn't include the Work menu item that is present in Word in Excel.
(To display the Work option in Word, right click into an empty area of the toolbar, select Customize then the Commands tab. Scroll down the Categories list, highlight 'Built In Menus' then on the Commands list scroll down to 'Work' and click, hold and drag and drop it onto the toolbar or the Menu bar. Click the Close button on the Customize dialog.
To include a document on the Work menu simply open it then click on the Work menu button and select 'Add to Work Menu'. To remove a document from the menu press Ctrl + Alt + - (hyphen), the cursor changes to a thick horizontal bar, place it over the entry you want to delete and left click.)