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Filename extension
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Navigation: Home > FTN file

Informations about the FTN filename extension and the file formats associated with it

We collected the information you should know about the .ftn filename on this page. If you were sent a(n) .ftn file in an e-mail, but you don’t know what to do with it, then you can find help here. We strive to suggest free, open-source applications that are available to everyone for the file formats.

1 filename extension(s) are in our database

.f - Fortran Source Code

The F file is a Development file, which is connected to the Fortran Source Code according to our registry. With the adequate settings, the Fortran Source Code (.f) files can be opened or converted with the help of Fortran Tools.

Format description:
F format
Fortran Tools
Magic string:
- / -
f77, f90, for, ftn
Related links:
Related extensions:
Fortran Source Code
Fortran IV Source Code
Fortran Declaration File
Fortran Interface File

Important! Programs other than the ones listed above may also use the .ftn file extension. Even harmful programs can create files with the .ftn extension to store data in them. Always be careful with .ftn files coming from unknown sources. Don’t open executable files that arrived in mails, even if you know the sender.

The .ftn file can’t be opened on your computer?

If the program necessary for opening the .ftn file is installed properly on your computer, then the quickest and simplest way to open the .ftn file is to double-click on the file’s name. If that doesn’t work, then the right software probably isn’t installed on your computer.

While opening the .ftn file, you may receive an error message from the associated application, this can be caused by the following:

Incorrectly given .ftn extension

The .ftn filename extension can be given incorrectly sometimes. The cause of the error could be a mistake or a simple typo. We found the following incorrectly given filename extensions that are the most frequent in the case of .ftn files.

btn, ttn, rtn, ftm, ftg, ft, fnt, ffn, ctn, vtn, tn, gtn, fth, ftb, frn

Maybe you’re not even looking for the .ftn file extension?

It’s possible the the file’s extension was given incorrectly. Below, we list some filename extensions that are similar to the .ftn extension. It’s possible that the one you’re looking for is among them.

JustButtons Button Image
Forth Source Code
Windows Help Full Text Group File
Microsoft Windows Font
MakeMusic Finale Template

Associated applications

The Windows operating system stores information about the applications associated to the file extensions in the registry database. The associations can be queried or modified in the Command Prompt window with the "assoc" command.

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We gladly accept application suggestions, but our primary goal is to suggest reliable, open-source applications that can be freely distributed to the users.

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