The last time I worked with CAL files (a few years ago), the points were stored at the top of the file with PN (Point Number) FE (Feature) and XX, YY, and ZZ codes. Then to chain the points together, the chains list was stored at the bottom of the file with FG(Figure) and PL (Point List). The point list would list all the points to store in the figure.
Can you post the CAL file you are having trouble with for us to take a look?