What to do when the toolbar Builder does not work in Excel 2007 or 2010?

Right click on the menu Builder 5 >> delete the custom command >> Right click on the toolbar Builder 5 
 >> delete the custom toolbar >> Click the Office.
OR
Click on Excel >> Options >> Select Add-Ins the Manage drop-down menu >> select Disabled Items 
 >> click Go Enable MyReport Builder 5 >> Close Excel and reopen.