I have two spreadsheets where the tabs have disappeared. I looked in the
Excel Opions/Advanced/Display options for this workbook and the tabs diplay
is checked...

But they are not there... I'm worried that I accidentally deleted the tabs,
but I do not remember doing that. The summary worksheet still references the
tabed worsheet cells rather than displaying errors, so I'm lead to believe
that they may be hidden somehow... Suggestions?