.ICS File Extension
File Type 1Calendar File
What is an ICS file?
An ICS file is a calendar file saved in a universal calendar format used by several email and calendar programs, including Microsoft Outlook, Google Calendar, and Apple Calendar. It enables users to publish and share calendar information on the web and over email. ICS files are often used for sending meeting requests to other users, who can import the events into their own calendars.
Calendar files are saved in a plain text format. They contain information such as the title, summary, start time, and end time for the calendar event. The Calendar format also supports event updates and cancellations.
NOTE: Apple Calendar was formerly known as Apple iCal but was changed in 2012 with the release of OS X Mountain Lion.
File Type 2IC Recorder Sound File
This file is saved in a binary format, which requires a specific program to read its contents.
.ICS File Association 2
Audio file created by a Sony IC recorder (e.g., the Sony ICD-R100), a handheld device used for recording personal messages; commonly used for storing voice audio, which is useful for forensics and legal environments, as well as for general personal memos.
File Type 3IronCAD 3D Drawing File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
.ICS File Association 3
Three-dimensional model or scene created with IronCAD, a 3D CAD program; may contain one or more 3D objects with colors, textures, lighting effects, and animation data.
NOTE: ICS files may automatically open in a calendar program such as MS Outlook due to the iCalendar file association. To open ICS files in IronCAD, you may need to right-click the file, select "Open With..." and choose IronCAD as the program.