VCI ReportMaker Export issue

So we were setting up a new Sales Assistant and the VCI Orion ReportMaker export to Efficio was failing.  It was coming up as an export to .htm and we need a .xls file.  Changing the file extension in the drop down did not fix the problem.  But after adding .xls to the end of the exported file name, it did successfully export and now the exports are coming up as defaulting to the correct file extension.