It's likely that a Beta version of Microsoft Office has been installed and a proper uninstall of this version of Microsoft Office was not done. This error code can also occur when a piece of Office software is installed that is newer than the version of Excel used. For example, having Visio 2013 installed on the same machine as Microsoft Office 2010. Both scenarios can cause an extra registry key to be available. The registry key is not pointed to a Microsoft Excel Object Library and the Report Generation Toolkit is trying to use this registry.
Additional InformationThe LabVIEW Report Generation Toolkit is built on ActiveX calls to Microsoft Office ActiveX controls. Error -41106 is a custom error code that is thrown by Report Generation Toolkit VIs when the underlying ActiveX calls are not able to open a reference to the ActiveX object.