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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
ABI - Extension Details
Date Added: January 01, 1970
File Extension:  .ABI
Description 1: .ABI file extension is linked with DNA Chromatogram File. This file carries the DNA sequence information stored by a DNA analysis device. It is also referred to as an electropherogram file or DNA trace file. It can be viewed graphically bay an ABI file viewer to compare and analyze DNA sequences. The standard .ABI file is supported by various programs.
Description 2: .ABI file extension is linked with ABI Software Development Coder. This is the file extension utilized by ABI Coder a personal file encryption program which is easy to use. It allows users to encrypt numerous files in numerous folders via three encryption algorithms. ABI Coder also has selfdecrypting tool which can generate encrypted files that do not need decryption software.
File Type:   Encoded and Encrypted File
Mode: ASCII
Program(s) to Open:  Windows: ABI Coder
Common:
Extension: