There are 4 other file types using
the ICS file extension!

ics file icon.ics - Image cytometry

ics file icon.ics - IronCAD 3D CAD file

ics file icon.ics - SwiftView command file

ics file icon.ics - Sony IC Recorder sound file

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ICS file extension - iCalendar calendar file format (Microsoft Outlook, Apple iCal)

What is ics file? How to open ics files?

File type specification:

Settings, options, themes or skins file type icon Settings, options, themes or skins file type

ics file icon: ics filetype icon

The ics file extension is mainly associated with Microsoft Outlook, a personal information manager, which is part of Microsoft Office, developed by Microsoft Corporation. But the ICS format is widely used by many other applications.

The ics file format is universal calendar format used by many other applications such as Microsoft Outlook, Apple iCal, Mozilla Sunbird, and Google Calendar.

It allows users to publish and share calendar data on internet. Other users can subscribe to published calendars and import events into their own calendars. The specifications for this format are described in RFC 2445.

MIME types:

The default software associated to ics file type:

Microsoft Outlook icon

Microsoft Corporation logo Microsoft Outlook  Microsoft Windows software

Company or developer:
  Microsoft Corporation

Microsoft Outlook is e-mail management tool and personal information manager distributed with Microsoft Office suite. Outlook integrates e-mail application, calendar, task manager, contact manager, note taking in to one application.

Microsoft Outlook is used as a stand-alone application and also can work with Microsoft Exchange Server and SharePoint Server.

The predecessor of Outlook was called Schedule+. The newest version is called Outlook 2016.

Apple Calendar (iCal) icon

Apple, Inc. logo Apple Calendar (iCal)  Apple macOS / Mac OS X software

Company or developer:
  Apple, Inc.

Apple Calendar (iCal) is a personal calendar application bundled with Apple Mac OS X since 2002. Calendar was the first calendar application for Mac OS X to offer support for multiple calendars and the ability to publish/subscribe calendars to WebDAV server.

Help how to open ICS files:

Applications like Microsoft Outlook or Apple iCal are able to import *.ics files.

How to convert file with extension ICS:

ABC Amber iCalendar Converter supports conversion of ICS Outlook calendar files in to other document formats.

Find conversions from ics file:

ics to csv

ics to dwg

ics to pdf

ics to pst

ics to sldprt

ics to xls

ics to xml

Find converter to ics file type:

csv to ics

dbk to ics

icbu to ics

iges to ics

pst to ics

step to ics

wab to ics

File identification strings:

HEX code: 42 45 47 49 4E 3A

Related links:

iCalendar format full overview.

List of software applications associated to the .ics file extension

Recommended software programs are sorted by OS platform (Windows, Mac OS X etc.) and possible program actions
that can be done with the file
: like open ics file, edit ics file, convert ics file, view ics file, play ics file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting of the ics files.

  • Open ics file
  • Create ics file
  • Import ics file
  • Export ics file

Software that open ics file - iCalendar calendar file format (Microsoft Outlook, Apple iCal)

Click on the link to get more information about listed programs for open ics file action.

Microsoft Windows:

Apple macOS / Mac OS X:

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