how to open .cfs index

[Guglielmo Fanini]

With the (latest) lucene 8.7 is it possible to open very old .cfs compound 
index file of lucene 2.2 with "Luke" ? or alternatively could it be possibile 
to generate the .idx file for Luke from the .cfs ?
the .cfs was generated by compass on top of lucene 2.2, not by lucene directly