Importing EndNote .ENL file into R dataframe

All,

My goal is to import the .ENL file into R as a DataFrame.

I can do this easily when I save the .ENL file as a .XML file. This .XML file can be converted to a dataframe in R easily but i want to eliminate that extra step of manually saving the .ENL file as an .XML file and directly import the .ENL and save as a datrame.  I am using this file as an example 

https://www.dur.ac.uk/resources/its/info/guides/files/endnote/PALEO~1.ENL

Any help on accomplishing this is much appriciated.