The Office Connector toolbar is present but all of the buttons are grayed-out (disabled).Cause 1 - No Active Workbook
In order for add-ins to be accessible in Excel, at least one workbook must be open. The Office Connector toolbar will therefore be grayed-out when no workbooks are open. Create or open a workbook and the toolbar should become enabled.Cause 2 - Add-In Is Disabled
The Office Connector add-in can be disabled by Excel, often as a result of Excel being ended while Office Connector was doing something.
To resolve this, follow the steps outlined in the following article to unload and then re-load the Office Connector add-in.