I am trying to visualize the change in the molecular geometry along the reaction path using the output from the Polyrate17-C package for a gas phase addition reaction. As mentioned in the Polyrate manual, the '.fu27' file is supposed to be opened in the XMOL package. However, I have failed to do the same. Can anyone help? Is there any conversion of file type needed for the 'fu27' file to be opened in XMOL?