It means you've selected multiple worksheets (probably by holding down
the shift key while selecting a sheet tab). Every change you make in one
sheet will be made in all the selected sheets.

To ungroup, right-click a selected worksheet tab and choose Ungroup from
the popup menu.

In article <930D69CE-E394-4CD2-849F-2288527F754F@microsoft.com>,
"Nikki" <Nikki@discussions.microsoft.com> wrote:

> Much like share shows up but it is group...