Airspace converter written in Perl that converts .aip (XML) into XCSoar .txt (openair) or .cup format.
Convert .aip into .txt file compatible with XCSoar:
oaip2txt.pl de_asp.aip airspace_de.txt
Convert .aip into .cup compatible with SeeYou et al.
oaip2cup.pl de_wpt.aip de.cup