How to Extract Calendar from OST File?

Is it possible to extract calendar from OST file? Yes, it is absolutely possible to extract OST file contacts in standard ICS format. If you realised that your OST file is damaged or your Outlook stop working, then also you can export the calendar data without any issue. Continue to read this article to know how it is possible.

OST is an offline storage table that stores Outlook emails, contacts, calendars, notes, tasks, etc. on the local system. If users want to export calendar data, Outlook provides an import/export tool that can help extract calendar data in CSV format. However, if the user has an inaccessible .ost file and wants to save their calendar data, this tool won’t work for you. If you want to know how to extract calendar data from an orphaned OST file, keep reading this article.

Method to Export OST Calendar Data

These both the approaches are tested and workable. You can use any of them as per your need.

#1. Using Outlook Import/Export Tool

#2. Using Automated Software

Let’s discuss these solutions in a descriptive manner with snapshots so that they can be easily understood.

Method 1: Extract Calendar from OST file Via Outlook

This method works when the OST file is from the same Outlook version you are using to extract calendar data.

Follow the steps below to save calendar data from the OST file into .csv format.

Step 1. Launch Outlook desktop email client on your Windows OS.
Step 2. Click on File >> Open & Export >> Import/Export.

extract calendar data from outlook
Step 3. Here choose action to perform – Export a File.

export calendar data from outlook
Step 4. Select Create a file of type: Comma Separated Value (CSV).

export calendar data from outlook OST file
Step 5. Select the folder to export from, choose Calendar.

extract OST Calendar data
Step 6. Browse the location to save extracted file and click on the required radio button. At last click on the Finish button to start the process.

export Outlook OST calendar as .csv

Here complete the process, you successfully extracted the calendar from OST file. Users can check it on the selected saving location and open the .csv file on any application that supports this file format.

However we already mention that it is not a workable solution with the orphan .ost file, and also mention discussing the method to extract inaccessible OST file, then we are going to discuss that method in the next segment. Therefore continue to read.

Method 2: Save Calendar data OST file using OST Converter

There are various tools out there, but which tool is best for you is the crucial question. After searching a lot we came up with one tool, Advik OST Converter that can perform the extraction process with efficiency and accuracy. It can extract data from corrupted, damaged, inaccessible and orphan OST file. Let’s check how this software works.

download ost converter

Steps to Extract Calendar from Outlook OST file in ICS format

Follow the below steps to save Outlook calendar data in standard file format;

Step 1. Install and launch this software in your Windows OS.

Step 2. Here users have to Add  OST file by clicking on the two options given. Users can select File or Folder.

extract ost calendar

Step 3. Select Calendar from mailbox folders to extract.

export calendar data from outlook ost file

Step 4. Choose the saving option as ICS from the given list.

export Outlook calendar to ics

Step 5. Browse the targeted location and click on the Next button.

extract calendar data from OST file

Here you extract Calendar data from OST file in ICS file format. Users can share or access this data file with anyone as required.

Some Amazing Features of this software

  • Export OST file in Bulk
    This tool can easily save calendar data from multiple Outlook OST files in a single attempt. Also, make sure to preserve data integrity while performing this extraction process.
  • Different File Saving Option
    Along with calendar data extraction from OST file, this tool also save the mailbox data in different file formats with complete data. User can export OST file to PST, MBOX, CSV, ICS, PDF,etc.
  • Dual File Selection Option
    This software has a dual option to add OST file. Users can add a single OST file for extraction, also a folder can be added that contains multiple .ost files.
  • Export OST to Cloud
    With the help of this utility, user can transfer OST file data to the various cloud-based email account. Also, users can export Outlook offline file to other email clients.

downlaod ost converter


Here in this blog, we mention two different methods to extract calendar from an OST file in ICS format. The user can choose either of the methods, but the manual method will not work if the user wants to export orphaned or damaged OST files. To accomplish this process, we recommend using any automated software mentioned on this blog.

Also Read: Convert PST to CSV 

1 Comment
  1. Try ZOOK OST to PST Converter is the prominent solution for users to export OST to PST format by maintaining the email properties and maintaining the folder structure of OST file.It provides the complete conversion of OST files into PST format by maintaining the data integrity and email attributes. At the end, users will get their complete emails at same folders and sub-folders without altering any information. It can be easily handled by any non-technical user to perform the migration process in few seconds. The application is designed by using the robust algorithms which has so much easy to use interface. The intuitive interface of the application can be easily understandable for users to perform the conversion process. The tool can easily support to the latest version of Outlook 2016 and all the below versions of Outlook for both 32-bit and 64-bit Windows operating system. In the demo edition, users can perform the conversion of 25 items from each folder of OST files into PST format.

    Explore More:-

Leave a reply

Enable registration in settings - general