But === This order is deprecated. It is recommended to use LIRE_MAILLAGE, FORMAT =' IDEAS '. Convert a mesh file from the "universal" IDEAS format to*Aster* format. It can then be read by*Aster* using the LIRE_MAILLAGE command. The versions I- DEASTM treated are versions 4, 5 and 6 as well as versions 1., 2., 3., 4., 5., 6., 7., 8., 8., 9., 9., 9., 9., 9., 10., 10., 11. and 12. NX Series.