Opening ICS files

Did your computer fail to open an ICS file? We explain what ICS files are and recommend software that we know can open or convert your ICS files.

What is an ICS file?

Files that contain the .ics file extension are created by a variety of calendar and scheduling applications. These calendar files allow different users to store calendar information within a text file. That text file can then be stored on the Internet and can be synchronized with other users' calendars. A user can stay updated regarding another user's calendar by "subscribing" to that calendar. This tool often helps administrative assistants help manage their executive's schedules and helps project teams stay coordinated.

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. The Open Source Bedeworks software project has also been reported to support the ICS file format.

Try a universal file viewer

In addition to the products listed above, I would suggest that you try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and very likely yours too! Download Free File Viewer.

By Prof. Jones (The File Expert)

Chief Content Editor and File Expert

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