.ics

File Type 1 Calendar File IconCalendar File
File Format Standard
Usage Open manually
Rank ★ ★ ★  Common
Description

Universal calendar format used by Apple iCal, Mozilla Sunbird, and Google Calendar; allows users to publish and share calendar data on the Web; other users can subscribe to published calendars and imports events into their own calendars.

Open With
Windows

IconMicrosoft Outlook

IconMozilla Lightning

macOS

IconApple Calendar

IconMozilla Lightning

Unix

IconMozilla Lightning

IconHorde Kronolith

IconClaws Mail with vCalendar plugin

Updated March 6, 2009
File Type 2 Generic IconIronCAD 3D Drawing File
File Format Proprietary (IronCAD)
Usage Open manually
Rank ★ ★ ☆  Average
Description

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.

Important: 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.

Open With
Windows

IconIronCAD

Updated 2007
File Type 3 IC Recorder Sound File IconIC Recorder Sound File
File Format Proprietary (Sony)
Usage Open manually
Rank ★ ★ ☆  Average
Description

Original sound file format used for recording messages on the Sony IC recorder, i.e. the Sony ICD-R100.

Open With
Windows

IconSony Digital Voice Player

IconSony Digital Voice Editor

IconMicrosoft Windows Media Player with Sony ...

Updated 2007
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