If what you actually want is a second copy of the entire file why not just
use Finder? With the file closed, Control+Click the file icon in a Finder
window & select the 'Duplicate' command. Rename the new file to suit, then
drag it to the preferred folder if necessary.
Alternatively, Open the file, click the first tab in the workbook,
Shift-Click the last, then Control+Click one of the tabs & select 'Move or
Copy'. Open the 'To book:' list & select '(new book)', check the 'Create a
copy' box then 'OK'. Name & save the new file as usual.
HTH |:>)
Bob Jones
[MVP] Office:Mac