FNF File - opening and understanding

Did your computer fail to open a FNF file? We explain what they are used for and recommend software that we know can open or otherwise handle your .FNF files.

What is a FNF file?

A .FNF file is a PTC FEM Neutral Format model file. Through our analysis of FNF files, we know that one use of the format is PTC FEM Neutral Format model. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open FNF files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension FNF for different purposes.

While we have not verified the apps ourselves yet, our users have suggested 8 different FNF openers which you will find listed below.

Suggest another file format using extension FNF

While we know of one file format using the .FNF file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .FNF file.

Various viewers for this file format

These apps are known to open certain types of FNF files. Remember, different programs may use FNF files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Forte StandardForte StandardUser submitted
Forte FreeForte FreeUser submitted
Forte - Premium EditionForte - Premium EditionUser submitted
Forte - Basic EditionForte - Basic EditionUser submitted
Forte - Home EditionForte - Home EditionUser submitted
Forte - Free EditionForte - Free EditionUser submitted
ForteForteUser submitted
Forte LightForte LightUser submitted
We have not verified any software that we know for certain will work with FNF-files on Mac. If you know one, please use the 'Suggest a program' link below and tell us about it!
We have not verified any web services that we know for certain will work with FNF-files. If you know one, please use the 'Suggest a program' link below and tell us about it!