ICS File

What are ICS files and how to open them

Are you having problems opening an ICS file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is an ICS file?

ICS files have multiple uses, and Calendar Entry is one of them. Read more about the other uses further down the page.

Calendar Entry File

Files that contain the .ics file extension are created by a variety of calendar and scheduling applications. .ics files are also referred to as vCalendar files and are most commonly used to send meeting requests to participants, who can have the meeting date automatically entered into their calendar when accepting the request.

The files are text files that can be inspected with any text editor.

Storing a .ics file on your website makes it possible to have, e.g., event dates easily entered into visitor calendars by having them click the file link.

Some of the applications that use the .ics file extension include Apple's iCalendar, IBM Lotus Notes, and Microsoft's Outlook email and calendar application.

How to open ICS files

We have identified two ICS openers that are compatible with this specific type of ICS file.

Programs that open Calendar Entry files

Last updated: December 27, 2022

More file formats using the ICS extension

Through our research of ICS files, we know that the following formats exist. However, we have not yet analyzed them in detail.

  • Image Cytometry Standard Header
  • IronCAD 3D Scene

Various apps that use files with this extension

These apps are known to open certain types of ICS files. Remember, different programs may use ICS files for different purposes, so you may need to try out a few of them to be able to open your specific file.

Microsoft OfficeMicrosoft OfficeUser submitted
VueMinderVueMinderUser submitted
ImagineImagineUser submitted
Mozilla ThunderbirdMozilla ThunderbirdUser submitted
OpenOffice.org BaseOpenOffice.org BaseUser submitted
Lotus NotesLotus NotesUser submitted
IrfanViewIrfanViewUser submitted
Adobe AcrobatAdobe AcrobatUser submitted
Citrix ICA ClientCitrix ICA ClientUser submitted
eM ClienteM ClientUser submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about ICS file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.