A chart has to be selected before the Chart tool bar is enabled. Ensure that
the worksheet is not protected and/or drawing objects are not protected and
click the chart to activate it. The Chart tool bar should then be enabled.

Regards,
Greg

"Khoshravan" wrote:

chart command bar does not open when I click the arrow. Looks like it is
locked. how can open it?
--
Rasoul Khoshravan Azar
Civil Engineer, Osaka, Japan