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
ICS - Extension Details
Date Added: January 01, 1970
File Extension:  .ICS
Description 1: .ICS file extension is linked with SwiftView Command File. This is the file extension for the command line [program command/s] utilized by SwiftView an application for viewing PCL5, PCL6, HPGL and TIFF files. It is an optimized application for quick, responsive viewing and for manual printing in black and white. SwiftView is owned and developed by SwiftView, Inc.
Description 2: .ICS file extension is linked with iCalendar File. This is the universal calendar file format utilized by Apple iCal, Google Calendar and Mozilla Sunbird. This application allows users to publish and share their calendars on the internet. Users can also subscribe to the published calendars and import events into their own calendars. The standard .ICS file format is supported by various programs.
Description 3: .ICS file extension is linked with Outlook Calendar File. This is the file extension for the calendar file utilized/created by MS Office Outlook an email application and a personal information manager rolled into one. It also has other nifty features such as a calendar, contact and task managers, web browsing, journal and note taking.
File Type:   Data File
Mode: ASCII
Program(s) to Open:  Windows: Microsoft Outlook
Common:
Extension: