.ICS File Extension
File Type 1Calendar File
Universal calendar format used by several email and calendar programs, including Microsoft Outlook, Google Calendar, and Apple Calendar; enables users to publish and share calendar information on the Web and over email; 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 2IronCAD 3D Drawing File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
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.
File Type 3IC Recorder Sound File
This file is saved in a binary format, which requires a specific program to read its contents.
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.