We have a Windows Excel 2010 spreadsheet that contains several Sheet. We have given the various sheets names. We have also made the tabs at the bottom have various colors. Somehow the tabs are now locked and I can not unlock them. I can not move the tabs, rename them or change their colors. At first, I had no problems making these changes. The worksheets and workbook are not "Protected" but the tabs seem to be locked.
Can anyone help us to unlock the tabs. Any assistance will be appreciated.