The following procedure will prevent the Office Connector toolbar from showing up for a particular user.
How Do I turn Office Connector off for a particular user under Citrix?
"In today's economic times, it is imperative that we are confident in the information we provide to our company and our customers. To achieve this, we rely on Office Connector. Office Connector enables Excel to instantly gather and write information that would otherwise take hours or even days to assemble."
B. Morse, The Gorman Group