Update function is grey out when try to update record using Select Report in Excel

Hi there, 

I have created sugar report and load them in excel. I would like to use Sugar Excel plug in to update some values in the sugar report. 

Have follow the best practice steps how to update records https://support.sugarcrm.com/Documentation/Plug-ins/MS_Excel_Plug-in/MS_Excel_Plug-in_User_Guide/#Best_Practices_for_Updating_Records_via_the_Sugar_Plug-in_for_Excel

but when trying to hit the update feature, it is grey out. Below is the report I have created for Opportunities record, and I would like to update Tags value under this report..  

Much appreciate on any pointers or suggestion how to troubleshoot this issue. Thanks