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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
PKH - Extension Details
Date Added: January 01, 1970
File Extension:  .PKH
Description 1: The .PKH file extension is associated with the Oracle Package file. It has to do with packages created using Oracle PL/SQL database program software. The files contain SQL scripts and code that are necessary to access info found on databases that are Oraclecompatible. PKH files allow for running as script.
File Type:   Data file
Mode: ASCII
Program(s) to Open:  Windows: Oracle PL/SQL software, view in a text editor
Common:
Extension: