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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
LDB - Extension Details
Date Added: January 01, 1970
File Extension:  .LDB
Description 1: .LDB file extension is linked with Microsoft Access Lock File. This file prevents Access database from being altered by multiple users at any one time. It aids in ensuring that updates will not be unexpectedly overwritten. Access can create and delete .LDB files automatically upon opening and closing a database.
File Type:   Database File
Mode: Binary
Program(s) to Open:  Windows: Microsoft Access
Common:
Extension: