Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .fd

2 extension(s) and 0 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .fd file?
  • Which program can create the .fd file?
  • Where can you find a description of the .fd format?
  • What can convert .fd files to a different format?
  • Which MIME-type is associated with the .fd extension?
Fortran Declaration File .fd file icon

Fortran Declaration File

FD file is a Fortran Declaration 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.
Category: Development files
Application: Fortran Tools
Program name: -
Mime-type: text/x-fortran
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Fortran Source Code
Fortran Interface File
Fortran IV Source Code
STK Facility Database Main File .fd file icon

STK Facility Database Main File

FD file is a STK Facility Database Main File. STK (Systems Tool Kit) is a physics-based software geometry engine that accurately displays and analyzes land, sea, air, and space assets in real or simulated time.
Detailed description not available
Category: Data files
Application: Systems Tool Kit
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
STK Planetary Ephemeris File
STK Aerodynamics File
STK Attitude
STK Azimuth-Elevation Mask
STK Body Mask File
STK Calculation Scalar File
STK Central Body Rotation File
STK City Database Main File
STK City Database Counties

Other types of files may also use the .fd file extension. If you have helpful information about .fd extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

Reaction Data File
RMCProfile Sulphur and Fluorine Data
Microsoft DirectX D3D Effect
STK Database Update Information
Godot Engine Source Code
Ben Daglish Music
Fresh View Thumbnail Cache
Finalburn Alpha Movie Capture
GD Library 2 Image

The .fd filename extension is often given incorrectly!

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

rd (27), gd (22), fx (11), bd (1), vd (1), fv (1), fr (1), fe (1), df (1), cd (1), td (1), fw (1), fs (1), ff (1), fc (1)

Can't open a .fd file?

If you want to open a .fd file on your computer, you just need to have the appropriate program installed. If the .fd association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.fd

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 from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

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