Where are the flat files for the gene annotation of each chromosome of C. elegans?
You should take a look at the Feature Tables (GFF), which you can pick up from the same ‘WormBase Downloads’ page where you found the “Summary Tables” (http://www.wormbase.org/downloads.html). You should also look at the ‘Batch Downloads’ page at WormBase (http://www.wormbase.org/db/searches/info_dump), where you can build your own tables of gene annotations. One other WormBase page you should look at is the “Genome Dumper” (http://www.wormbase.org/db/searches/advanced/dumper).