Worksheet is not protected. It does in fact show [Group] in the title bar,
but not sure what that means. I do have several files saves as a Workgroup
which I use every day, but none of the other files have this problem.

Incidentally, I did solve the problem simply by closing all the files and
restarting them .... but what did I do in the first place?

Thanks for your help.
Brian

"David Biddulph" wrote:

Is your worksheet protected?
Have you grouped a number of sheets together (does it show [Group] in the
title bar)?
--
David Biddulph

"Brian Toller" wrote in message
...
I have one file in which the data filters are frozen, and none of the
functions on the data tab (i.e. sorting) are functioning.

All my other Excel files have full functionality.

What have I done to this file and how do I correct it?