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>> F file

F file format description

Many people share .f files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .f file can be edited, converted or printed with. On this page, we try to provide assistance for handling .f files.

2 filename extension(s) found in our database.

.f - Fortran Source Code

F file is a Fortran Source Code. Fortran is a computer programming language originally developed in the 1950s. It is still used for scientific computing and numerical computation half a century later. It is sometimes considered the earliest cross platform (standardized) programming language.

.f file format description:
F format
Fortran Tools
Development files
- / -
f77, f90, for, ftn
Fortran Source Code related links:
Fortran Source Code related extensions:
Fortran IV Source Code
Fortran Declaration File
Fortran Interface File

.fs - Forth Source Code

FS file is a Forth Source Code. Forth is an imperative stack-based computer programming language and programming environment.

.fs file format description:
FS format
Development files
- / -
4th, f, forth, frt, fth
Forth Source Code related links:
Forth Source Code related extensions:
Gforth Blocks File
Gforth Image File
Forth Source Code

Naturally, other applications may also use the .f file extension. Even harmful programs can create .f files. Be especially cautious with .f files coming from an unknown source!

Can't open a .f file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

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