Open native ideas files in NX

[swale2]

Hi is there a license or tool to import native ideas files into the latest NX? Our company has many loose/native (TDM was not used) files with extension names from .a50, m21, m72, m11, m12 and .mx6 Is there a tool similar to the ideas asc tool to open these? All are 2d drawings.

Thanks in advance.

 

[rothers]

Strange file extensions, I-Deas 2D Drawings would be .asc, .dwg or .mdf