>> FI file

FI file format description

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

2 filename extension(s) found in our database.

.fi - Fortran Interface File

The FI development files are related to Fortran Tools. FI file is a Fortran Interface File. 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.

Fortran Tools
Development files
- / -
Fortran Interface File related extensions:
Forth Source Code
Common Object File
Turbo C Utilities Form Definition
Turbo C Help
Atari Jaguar GPU Assembly Source
Ada Implementation File

.fi - Gforth Image File

The FI development files are related to Gforth. FI file is a Gforth Image File. Gforth is the Forth implementation of the GNU project. An image file is a file containing an image of the Forth dictionary, i.e., compiled Forth code and data residing in the dictionary.

Development files
- / -
Gforth Image File related extensions:
Gforth Blocks File
Forth Source Code

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

Can't open a .fi 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.

The .fi file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bi, ti, if, fo, ei, ci, vi, ri, gi, fl, di

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

BSC Intermediate Object
OpenEdge ABL Before Image
LabVIEW Virtual Instrument
602XML Form Filler Data
iBlaze Case Information File
Jovian Logic VIA Image

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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