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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
F - Extension Details
Date Added: August 02, 2009
File Extension:  .F
Description 1: .F file extension is linked with Fortran Source Code these are source codes written using Fortran programming language. These files require reprocessing via CPreProcessor, before being passed and compiled by the Fortran compiler. .F file extension is the same as .FOR file extension. .F90 file extension is the latest type.
Description 2: .F file extension is linked with Paradox File. Paradox is published by Corel Corporation and it is a relational database management system. Initially, it was intended only for DOS and was developed by Ansa Software. In 1992, Borland released a Windows version. Paradox offers distinguishable features such as: visual querybyexample implementation supported by Al engine; caching of data tables and indexes that allow the application to quickly execute tasks; uses innovative programming language [Paradox Application Language or PAL]; Lotuslike windows and text menus; readability of user and programming manuals specifically for Paradox 1.0 and 2.0 [well laidout, explained and written in common English].
File Type:   Data File
Mode: ASCII
Program(s) to Open:  Windows: Corel Paradox
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