You haven't got two documents open, you've opened two windows on the same
document.
Close one (not with the red X at the top right which closes the whole
instance of Excel, but with the smaller blue X just below it), then save the
workbook. Reopen & you'll just see the one window.
--
David Biddulph

"djn" wrote in message
...
I don't know how this happened....

I have two documents that open at the same time (one has a :1 and the
other
a :2 at the end of the file name) When I make a change to one, the change
automatically happens to the other. How do I close these documents and
get
back to working with the original/main document? Thanks.