In several situations users requires to transfer their Outlook calendar to other applications or devices. But users faces difficulty while doing this, because Outlook uses OST files for storing users calendars. This OST file format is only workable in outlook. As a result, users of Outlook requires to Convert OST to ICS file format. Through this article, we will describe the whole process to Export Outlook Calendar From OST to ICS files. Continue reading to get complete details.
When a user configures his email account in MS Outlook, the user gets an OST file. Outlook creates this file to store users profile data items and access them in Offline mode. In OST file Outlook saves all Emails, contacts, calendars, and other items of the user’s mailbox.
ICS file format, on the other hand, allows to save calendars and scheduling information such as tasks, events, to-do lists, and so on things. For storing Calendar data, a large number of applications and devices supports and use this ICS format.
OST files are only workable in Outlook and the ICS files are compatible with more than applications. For this reason, users who want to access their Outlook calendar with other application wants to Convert OST to ICS files.
Now let’s see which is the best method available to Export Outlook Calendar From OST to ICS files.
Also Read:- How to Export Excel Calendar to ICS Files?
Automated Program to Export Outlook Calendar From OST to ICS files
Outlook allows storing calendars in OST files but for many reasons, users requires to extract and save to ICS file. Manually users can import or transfer calendar data from OST but the manual method is difficult for new users. Also, the manual is usable if you have a healthy OST file.
So, the best option which is available for users to save Outlook calendars to ICS files is using eSoftTools OST Converter software. Using this utility a user can simply extract Calendar from OST into ICS format in a simple manner. It has a highly user-friendly interface and provides the most accurate result of calendar conversion.
How to Move Outlook OST Calendars to ICS files Using OST Converter?
- Download/Install and launch eSoftTools OST Converter Software on your Windows PC.

- From the software’s first screen press the Select OST button.
- Select Single File or Bulk OST File Selection conversion mode, then hit the Next button.
- Add OST files into the software and press the Scan scanning button.

- Begin the scanning process and load all of the data from the Outlook OST file, including emails, contacts, calendar events, and other objects.

- From the preview panel of the software, select the necessary folder and sub-folders and then click the Save OST button.

- Then, from the conversion options list, select the Export to ICS radio button.

- Select a place to save the resulting files by pressing the Browse button.
- Finally, click on the Convert button to begin the process of Exporting Outlook Calendar From OST to ICS files.

OST to ICS Converter’s Best Features
- Convert a large number of OST files with Outlook calendar to ICS format at a particular time.
- During OST to ICS file conversion process, the software keeps all data with complete information.
- From OST to ICS conversion, the software supports Microsoft Outlook, Exchange, and IMAP OST files.
- Also, able to Convert Encrypted OST files to ICS file format.
- Support to convert all sized OST files (huge to short OST) to ICS file format.
- In addition, users can repair corrupt OST files through this software before the conversion process.
- Works with all OST files of Microsoft Outlook version 2019, 2016, 2013, 2010, 2007, and below editions.
- The software doesn’t requires Installation of Microsoft Outlook for OST file conversion.
- Users can save resultant ICS files to their desired location.
- It works with both the most recent and older versions of Windows Operating Systems (Including Windows 10 32 bit/64 bit).
Conclusion
A very large number of users needs to Export Outlook Calendars to ICS files. As a result, we’ve outlined the easiest way to export Outlook calendars from OST to ICS file format in the above section of this article. Both technical and non-technical persons can use this technique to Convert OST to ICS files. A free demo version of this tool is also available for users. Try the demo version of OST converter now, to get the facility of exporting up to 25 calendar items from OST to ICS files free of cost.