.PLA
.PLA file: the ArchiCAD Archive file type.
.PLA file: the ArchiCAD Archive file type.
.PLN file is the standard ArchiCAD file format .BPN files (backup ArchiCAD files), .TPL files (template ArchiCAD files), .GSM files (object ArchiCAD files), .LCF (library container ArchiCAD files), .PLA file: the ArchiCAD Archive file type.
.PLN file is the standard ArchiCAD file format