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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
FZF - Extension Details
Date Added: January 01, 1970
File Extension:  .FZF
Description 1: .FZF file extension is linked with Casio FZ1 Full Dump. This is the "dump of all the data stored in a Casio FZ1 memory. Casio FZ1 is a digital sampling keyboard released in the 1990s by Casio. .FZF file extension is also associated with Awave Studio by FMJSoftware a multipurpose audio/sound tool which reads audiocarrying file formats from various platforms, trackers, synthesizers, mobile phones and others.
Description 2: .FZF file extension is linked with FontZip Font Packer. Latest FontZip application opens/creates selfextracting installations. FontZip offers users easy font installations. The application creates .EXE installer that is easily distributed without the need for supporting files. The application supports Windows 98 to Vista OS. .FZF file extension and FontZip are owned and developed by Digitope.
File Type:   Archive/ compressed file
Mode: Binary
Program(s) to Open:  Windows: Digitope FontZip
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