Language list files are contain only two fields, the 'name' field which has no tag label and the TYPE tag. The Languages list file is used with the xxxskills.lst file for the CHOOSE:Laguage(>list of names<) tag. This file also tells PCGen what languages are available for races to choose form with their bonus languages based on their primary language stat (Usually Intelligence).
Tag Name: TYPE
Variable(s) Used: Text
Example(s): TYPE:Spoken
Example(s): TYPE:Spoken.Written
Example(s): TYPE:Spoken.Written.Read
Example(s): TYPE:Spoken.Read
Example(s): TYPE:Written
Example(s): TYPE:Written.Read
WHAT IT DOES: This is a . (period) delimited list of the types that languages are, (Spoken, Read, Written).