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Written By Amit Chandel
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Updated on December 3rd, 2025
Brook Query: “I have an old Outlook profile with an OST file. I need to extract only the calendar data from it. How can I easily and quickly export my calendar data?”
Outlook’s calendar makes meeting planning and management simple by keeping everything in one place. The storage location you choose will determine whether your calendar data is subject to being damaged and/or lost. Therefore, extract calendar from OST file is very important if you have any entries that are critical. This blog outlines two ways for you to export your calendar data from an OST file: manually and with the professional MailConverterTools OST to PST Converter Tool.
This manual method works only if your Outlook OST file is accessible and Outlook is connected. If your file is inaccessible or Outlook is offline, consider using the automated method described later.
OST to PST Converter is the most Trusted and Reliable tool for your OST file issues. It’s user-friendly and secure, so many IT professionals recommend it. It also includes features such as the ability to easily remove duplicate emails and to reduce the complexity of your email management by introducing a range filter based on the date of all your emails – making your extraction easier! Additionally, it migrates to Office 365 and over 15 other Email Clients, and works on all versions of Windows.




Successful User Case:
An IT Administrator was unable to access the Outlook Calendar after having the profile crash and could not use the manual export method due to Outlook’s inability to open. Instead, he utilized the OST to Outlook PST Converter, which allowed him quick access to load the OST file, view his calendar, and convert the data from that calendar to the ICS format. By using this method, he was able to quickly recover all of the meetings that he had in his new Outlook account.
To conclude, extract calendar from OST file becomes important when Outlook stops working or won’t open. The manual export option is helpful, but only when Outlook is accessible. If the file is damaged or Outlook won’t load, a dedicated OST Converter Tool makes the job easier. It lets you quickly recover, save, or move your calendar data without risking any loss.
Ans. You can manually extract your Outlook calendar using the Import/Export feature in Outlook. Go to File > Open & Export > Import/Export, choose Export to a file, select Calendar, and save the data as a PST or ICS file. This method is suitable only when Outlook is working, and the OST file opens without any issues.
Ans. Yes, extracting calendar data from an OST file is safe when done correctly. Manual export is secure if Outlook is functioning. However, if the OST file is corrupted or Outlook won’t open, using a professional OST converter tool ensures a safer and more dependable extraction without risking data loss.
Ans. The most effective solution is a professional MailConverterTools OST to PST Converter Tool, as it can extract calendar data even from damaged, orphaned, or inaccessible OST files. It offers advanced filters, supports ICS export, and doesn’t require Outlook. Many IT specialists recommend it for its accuracy, speed, and stable performance across Windows versions.
About The Author:
Meet Amit, an experienced SEO expert and content planner. He uses his creativity and strategy to create content that grabs attention and helps brands reach their goals. With solid skills in digital marketing and content planning, Amit helps businesses succeed online.
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