Programmers compile the Fortran source code with a compiler. This translates it to machine code to run as a program on a computer. Examples of Fortran compilers include Absoft Pro Fortran and Intel Parallel Studio. The .ftn file extension stands for Fortran. Other Fortran source code files include .F, .F90, and .FOR. FTN files store Fortran source code. 7 other programs can also handle FTN files. Suggested software for FTN files is Pro Fortran. FTN file format belongs to the Developer Files category with 1205 other formats.
Originally FTN was developed by IBM in the 1950s for science and engineering. FTN files might contain Fortran source codes. You can edit these with any text editor. But they probably cannot convert to other formats. The FTN File Extension has two file types, mostly Fortran Source Codes. Six programs open them, with MacroMates TextMate being the main one. These are Developer Files but also Vector Image Files.
FTN is flexible, standing for multiple data types. This includes Fortran source codes, Fidonet data, flight simulation data, and GIS data. Recognizing the context avoids misuse. Another FTN format is Fortran Tools for scientific computing from the 1950s. It is an early cross platform language still used today. The manufacturer’s website has more information.
Double-click the FTN file icon to open it. If associated with a program, it should open. First, verify Apple Xcode is installed. Then check if FTN links to the right program. If not, the wizard might start instead when opening.
GNU Fortran Compiler
Flowton Technologies Software