48 Error when importing Excel File

Hi,

We have updated our Microsoft Office to 64 bit and gINT professional stopped working - ICT department uninstalled and re-installed to latest version and gINT now opens but anytime I try to import an excel file I get the error "48 Error in loading DLL = = = gintA". I saw someone else on Forum had similar issue and installed Office suite 365 and the problem was sorted out, however, our company office suite is already installed. Any idea what specific office issue there is that they would need to sort out?

Thanks

Seenan