A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Are the worksheets protected? (Review > Unprotect Sheet)
Is the workbook shared? (title bar would say [Shared]: Review > Share Workbook)
Are some worksheets grouped? (title bar would say [Group]: Right-click a sheet tab > Ungroup sheets )
Bill Manville. Excel MVP, Oxford, England. www.manville.org.uk