I might also make clear that when using the nsf newfile or nsf rename file,
you can also redo the path to one that does not presently exist and nsf will
crete it for you, even if the new path contains an interior directory change
in the path.
Also, when you choose to do an nsf newfile or rename file, the prompt
presents with the path and name of the current file with a random 4-digit
number added to the end of the extension. This will prevent a conflict with
the previously existing filename if you inadvertently attempt to save the
prompted name.
So, typo mistakes aside,... :)