How to open ICS files? 4 simple methods of solving such problems

When you encounter a problem with an unknown ICS file and you do not know how to open such file, the first step you should take is to determine the cause of given problem. We will show you how to address most common problems with ICS files and how to solve them in 4 simple steps.

ICS File Extension

  • File type ICalendar Format
  • File developer N/A
  • File category Misc Files
  • File popularity rating
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What is a(n) ICS file?

The .ICS calendar file allows universal storage of text data used to support the most popular online calendars on the market. By using this format, you can be sure that the recipient of the file, regardless of their software, will receive accurate information about the event, including the name of the event, brief information about it, and start and end time. Files are sent via email to determine the event, but also to delete or update it.


How to open ICS file?

In some cases problems may occur when trying to open ICS files. Steps listed below can be helpful in addressing such problems.

Step 1 – Verify whether the file is properly associated with selected software

The first thing user should do is to associate application with ICS files. It may happen so that even when an application that supports ICS files is installed on the system it is not properly associated with this file format. This can be easily remedied by associating program with ICS files. In order to associate such files with given application, user must open the file menu (by right-clicking on the file) and choosing "Open with". A list of suggested applications will be displayed at the top part of menu. Next, select an application and confirm your choice by checking "Always use the selected application to open this kind of files" option. Confirm your selection by clicking OK.

In order to open ICS file, focus on steps 1 and 2


In majority of cases following instruction in step 1 and 2 should be enough to open files with ICS extension. Before attempting the next steps, test all the programs listed below.

Step 2 – Install a program that supports ICS files

Should it happen that the section with suggested programs is empty, it is most probable that no program supporting ICS files is installed on the system. Choose a program from the following list and install it:

Programs that support files with ICS extension

Step 3 – Check for other possible causes of errors

  • Corrupted storage medium on which the ICS file is stored
  • File data corruption or incompleteness (for example, due to incomplete download or copy process). In such case the file must be re-downloaded or properly copied and then opened again.
  • Compatibility issues – check whether ICS extension is compatible with user’s operating system
  • Administrative policy settings may prevent user from opening given file

Step 4 – Contact an expert

If you are still unable to open ICS file, you should contact an IT expert. You could also try to contact the developer of given software that supports ICS files. Appropriate website addresses can be found by clicking the name of given program in the list above.

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