Using EndNote to conduct co-word analysis


I want to conduct co-word analysis based on the references in an EndNote library. I couldn’t find any software that can apply such analysis by using the information in an EndNote file directly, so I had to export the references to a file with .bib extension and .ris extension. However, the keywords are not extracted properly in each case. Could anyone tell me if there is a software or an export method that can be used to conduct co-word analysis? I’m open to any suggestions about finding a way to do social network analysis using an EndNote file.

Thank you in advance!