How to Convert Outlook PST to ICS File – A Complete Guide

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  • Published on February 11th, 2025

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Being an Outlook user, you may have many PST files containing large volumes of data. It stores all your emails, contacts, tasks, appointments, calendars, and more. But what if you need to access Outlook calendar data on a different application? In such a case, you need to convert PST to ICS. This is because ICS is a versatile format supported by all calendar applications. So, to perform this conversion with ease, find the best ways and a PST Converter in this guide.

Need to Convert Outlook Calendar into iCalendar

As we know, ICS (Internet Calendar and Scheduling) files are an ideal format for storing calendar data. Also, they are easily shareable across all platforms, unlike PST, which can only be accessed within Outlook. Thus, users change ICS to PST. Some more significant reasons for this are:

  • ICS is an email client-independent file format and can be opened anywhere.
  • To change orphan PST calendar files into an accessible format.
  • ICS files can store huge volumes of calendar data at once.
  • To back up and archive Outlook calendar data for security concerns.
  • For maintaining records and sharing the file details with a non-Outlook user.

How to Convert PST to ICS Format?

Go through this section to find the manual method to save PST files as ICS files for free. However, it may have some drawbacks that must be addressed. Alternatively, find a better way of conversion using a professional tool as tested and verified by experts.

Convert PST Calendars to ICS Manually

The manual method has a simple process and can be directly performed within the Outlook application. Follow these steps:

  1. Start MS Outlook and click the Calendar icon at the left.
  2. Further, select the calendar that you want to change and press File.
  3. In the menu, click the option Save Calendar and then Save As.
  4. Afterward, provide a filename and destination for your ICS file.
  5. If you want additional options, press More. You can also choose the time in the Date Range option.
  6. Next, after applying all the required customization options and selecting ICS as the save type, click OK.
  7. At last, press the Save button to export the Outlook calendar to the ICS file.

Loopholes of the Manual Method

  • Allows to save only one Outlook calendar at a time, i.e., no bulk conversion.
  • Need stable internet and healthy Outlook application and profile.
  • Technical knowledge is needed to perform the steps accurately.
  • Takes time as there are multiple steps involved and chances of error.

Therefore it is suggested that an expert tool be used to avoid limitations and perform a secure conversion. Learn more about it below.

Which Professional Tool Convert PST to ICS?

If you need an instant and error-free solution to change PST to ICS, use the Cigati PST Converter. The tool has an intuitive interface and allows you to convert large and bulky PST files at once. Along with that, it ensures 100% accuracy during conversion and keeps data intact as the original. Moreover, it doesn’t require you to install the MS Outlook application for conversion. Besides that, import ICS files to other email clients or change them into any other desired format, including ICS. This tool is a complete solution to handle duplicates, attachments, and much more with ease.

Steps to Convert PST Calendars to ICS

  1. Run the PST to ICS Converter Tool and select an option. Click Next.
  2. Press Select Files/Folder and opt for the PST file. Click Open to import it.
  3. Further, preview and pick the calendar folder from the tree format. Tap Next.
  4. Click File Formats and from the open drop menu, select the ICS file format.
  5. After that, check the box for additional filters to apply to the ICS file.
  6. Press the Path to Save button and provide the location to save the ICS file.
  7. At last, click the Convert button to export PST to ICS.

Conclusion

To wind up, users can easily convert PST to ICS files directly from Outlook or using a professional tool. This blog stated various reasons for conversion and detailed procedures. The manual way has some cons that can affect the crucial data stored in your PST file. That is why, directly go for the expert tool to avoid all hassles and save time. Moreover, with its demo version, you can convert a specific number of calendar files for free.

You May Also Read: Import PST to Outlook Mac

Frequently Asked Questions

  1. How to convert the Outlook calendar to an ICS file?

Ans: Follow these steps to export the Outlook calendar to ICS file:

  1. Launch the PST to ICS Converter Tool and add PST files.
  2. Select Outlook calendar folders from the preview panel. Click Next.
  3. Choose ICS from the saving menu and apply filters for it.
  4. Specify a destination and hit Convert to save.
  1. Why is ICS a standard format for calendar files?

ICS file format is easily accessible on all applications and thus, considered a standard for calendar files. This includes Google Calendar, Outlook Calendar, Apple Mail Calendar, Thunderbird Calendar, and more.

About The Author:

Rohit Singh is an Email Backup, Recovery & Migration Consultant and is associated with Software Company from the last 3 years. He writes technical updates and their features related to MS Outlook, Exchange Server, Office 365, and many other Email Clients & Servers.

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