What is .FTN file extension?
.FTN file extension is a known file type. This section of easyfileopener.com tells you everything you need to know about this extension.
Source code file written in Fortran, a programming language often used for numerical computation; uses the ".ftn" extension, which is shorthand for Fortran; saved in a plain text format and may be edited with any text editor, but must first be compiled by a Fortran compiler before being run as a program.
Fortran source code files also use extensions such as .F, .F90, and .FOR.
You can see a list of software programs here on easyfileopener.com that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.