Hidden worksheets displaying on opening

I have a problem that I haven't seen before. I have a
workbook that I update and distribute daily. This
workbook contains hidden worksheets that I do not want to
be displayed when I distribute, so I keep them hidden when
I save the file. This morning, upon opening the file, all
of my hidden sheets were displayed. I hid the sheets I
wanted hidden and saved the file and closed it. When I re-
opened the workbook, all of the hidden worksheets were
displayed again. I went to Outlook and pulled up some of
the workbooks I had e-mailed over the past several days.
I knew that those files had the worksheets hidden.
However, when I opened them today, all of the hidden
sheets were being displayed. Have I accidently changed a
setting that I am not aware of that is making this
happen? I have looked at all of the options and can't
find anything.

Thanks

It sounds like you have not protected the WORKBOOK.

-----Original Message-----
I have a problem that I haven't seen before. I have a
workbook that I update and distribute daily. This
workbook contains hidden worksheets that I do not want to
be displayed when I distribute, so I keep them hidden
when
I save the file. This morning, upon opening the file,
all
of my hidden sheets were displayed. I hid the sheets I
wanted hidden and saved the file and closed it. When I
re-
opened the workbook, all of the hidden worksheets were
displayed again. I went to Outlook and pulled up some of
the workbooks I had e-mailed over the past several days.
I knew that those files had the worksheets hidden.
However, when I opened them today, all of the hidden
sheets were being displayed. Have I accidently changed a
setting that I am not aware of that is making this
happen? I have looked at all of the options and can't
find anything.

Thanks
.