MDA file extension - MicroDesign area file
What is mda file? How to open mda files?
File type specification:
The mda file extension is also related to now discontinued program called MicroDesign.
There were two different MDA file formats. The earlier MicroDesign2 format used a simple compression technique to reduce continuous areas of white and black, while the latert MicroDesign3 format uses a more sophisticated technique which generally results in smaller disk files.