Home » MS Outlook » How to Convert OST to ICS with Outlook calendar?
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Many users use Microsoft’s MS Outlook application to manage calendars and appointments. Calendar event data is preserved by Outlook inside data files like OST. However, some users need to preserve those calendar information inside ICS files. If you are also a user who wants to do this, then the solution for you is in this article. Here we will show “How to Safely Convert OST to ICS with Outlook Calendar”. let’s start.

Outlook OST and ICS File – Overview

OST (Offline Storage Table): – It is a data file that MS Outlook uses as a local copy of a mailbox available on the mail server. These OST files have a direct connection with the mail server. Whatever changes the user makes inside the OST files, that change will automatically be reflected in the data of the mail server. An OST files preserve all the data of an email profile, including emails, contacts, calendars, etc. Also, it enables that data to be accessed in offline mode.

ICS File: – ICS is a universal file format that is widely used by a variety of applications and devices for sharing and storing calendar information. Exchanging calendar events between different platforms becomes much easier with ICS files.

Also Read:- How to Extract Contacts from Outlook OST file to vCard/VCF?

Why Convert Outlook OST to ICS files?

  • Preserving Outlook Calendar Separately: – An OST file contains a large number of different data items, so it becomes difficult for some users to manage that data. As a result, users prefer to extract some data from OST like- “Calendar Event” into different file types like- “ICS”. This method helps users to manage data in OST files.
  • Sharing calendar with different platforms: – OST files are only workable in Outlook, so it is not possible to transfer Outlook calendar data to different applications with OST files. However, with the method of exporting Outlook calendar from OST to ICS files, users can transfer their calendar events.
  • Creating a backup of important Calendars: – Users can make copies/backups of their important Outlook calendar events by saving them in ICS files.

Best Solution to Convert OST to ICS with Outlook calendar


Transfer calendar events from Outlook OST to ICS files with the help of a utility called Enstella OST Converter Software. Perform OST to ICS conversion with all calendar events, with one smart process.

It exports each calendar event to ICS files with all their relevant information, (including- sender name, subject, date, description, attachments, etc). The software provides a complete preview of each calendar item and other data items from OST files before conversion. Apart from conversion, this tool also can recover calendars from corrupted/encrypted or orphaned OST files.

How to use Enstella OST to ICS Calendar Converter Software?

Download this Windows-based Enstella OST Converter software and install it on your machine. After installation, apply the below given steps: –

  • Launch the OST Converter tool and press the Select OST button.
  • Choose a mode of OST file adding from options: –
    • Single OST File Conversion: – add a single OST file for conversion.
    • Bulk OST File Conversion: – add multiple OST files and convert them at once.
  • Select OST file adding mode and hit the “Next” button.
  • Add OST files for conversion and press the Start Scanning button.
  • Load all data items and folders from OST files and get a preview of all items.
  • Choose the required calendar folders and press the Save OST button.
  • Select Export to ICS from the export option and other required options: –
    • Create a single for all selected folders: – By default the software will generate separate ICS files for each calendar to be saved, to prevent this you can select this option and save all the calendars in a single ICS file.
    • Mail filtering: – Select this option to select the calendar dates that you specifically want to extract from OST files.
  • Press the Browse button and select a location from your computer to save ICS files.
  • Click the Convert button and start OST to ICS file conversion with calendar events.

Conclusion

The ICS file format is a valuable asset for performing a variety of tasks related to calendar events such as collaborating with coworkers, coordinating with clients, or integrating your calendar with other applications. Converting Outlook OST to ICS allows you to share calendar information seamlessly across different platforms and applications. By following the steps outlined in this guide, you can ensure a smooth conversion process. Try Enstella OST Converter software now.

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