PCauthorities.com presents…
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
NYF - Extension Details
Date Added: February 10, 2008
File Extension:  .NYF
Description 1: .NYF refers to the file extension associated with data files myBase saves. myBase is a freeform database system that is capable of storing formatted documents, unstructured text, emails, web pages, images and other filetypes. Data entered in myBase databases are saved in treestructured outline format. To reduce the size of files, they are compressed using zlib compression.
File Type:   Data file
Mode: ASCII
Program(s) to Open:  Windows: Wjj Software myBase
Common:
Extension: