Linked Data Manager Could not load file or assembly

One of our CADD Techs is having an issue importing an excel sheet into Microstation PowerGEOPAK. Once he selects the excel file, we get the error "Could not load file or assembly "Microsoft.Office.Interlop.Excel, Version=". We are using Office365 desktop and excel is installed.

This function works properly on different machines in the same project. They are using the same version of Office and PowerGEOPAK. A snip of the error is attached. 

I was able to find a forum post about this issue, but it was dealing with Office 2007. The resolution was not posted. Any assistance would be greatly appreciated!