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.ICS File Extension

A .ICS file is a Calendar File, created by Internet Engineering Task Force.

Open with Mozilla Thunderbird Lightning Calendar. Available for Linux, Windows, and Mac.

What is a .ICS file?

An .ICS file is a type of file that helps people share calendar events with each other. It's like a digital invitation or reminder for events such as meetings, birthdays, or holidays. This file format is very popular and can be used by many different calendar and email programs. Some of these programs include Microsoft Outlook, Google Calendar, and Apple Calendar. These programs can open and use .ICS files to add events to your calendar.

When someone sends you an .ICS file, it's like getting a digital invitation. You can open this file with various programs or apps to see the details of the event. These details usually include what the event is about, where and when it will happen, and sometimes a little note or description. If you want, you can then add this event to your own calendar so you don't forget about it.

Here are some programs and apps that can open .ICS files: - **Mozilla Thunderbird Lightning Calendar**: This is an add-on for the Mozilla Thunderbird email program that lets you manage your calendar. - **Horde Kronolith**: A web-based calendar that can open and manage .ICS files. - **Claws Mail with vCalendar plugin**: An email program that can handle calendar files when you add a special plugin. - **Any text editor**: Since .ICS files are in plain text, you can open them with any text editor like Notepad or TextEdit, but it might be hard to understand the details this way. - **Microsoft Outlook 365**: A popular email and calendar program that can open and add .ICS files to your calendar. - **Apple Calendar**: If you have an Apple device, this program comes with it and can open .ICS files. - **Google Calendar**: A web-based calendar that can open .ICS files directly from the web or on Android devices. - **Flexibits Fantastical**: A calendar app for Mac and iOS that can handle .ICS files. - **Indigoblue ICS to CSV Converter and ProjectWizards ICS to CSV Converter**: These are special programs that can change .ICS files into CSV files, which might be useful in some situations.

The .ICS file format was created by the Internet Engineering Task Force in 1998. It's a simple, universal way to share calendar events, making it very useful for professionals to send meeting requests or for anyone to share event reminders.

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