NNN file extension - Filmetrics F20 material data file
What is nnn file? How to open nnn files?
File type specification:
The NNN file extension is associated with the Filmetrics F20 a film thickness measurement instruments developed by Filmetrics, Inc. The .nnn file contains material data captured by Filmetrics F20.
Data from Filmetrics F20 can be managed by FILMeasure software.