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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
PBI - Extension Details
Date Added: January 01, 1970
File Extension:  .PBI
Description 1: The .PBI file extension is associated with the PC BSD Installer Package. It is an installation package that was created especially for the PCBSD operating system. PBI files contain a setup file along with libraries, both are necessary for a successful full installation. This file launches the PCBSD installation wizard upon opening. A .PBI file is a lot like the SETUP.EXE file that comes included in most Windows applications.
File Type:   Compressed file
Mode: Binary
Program(s) to Open:  Windows and Unix: PCBSD Installation
Common:
Extension: