Convert OLM File to ICS: Transfer OLM Contacts to ICS
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Written By
Aradhya Jain -
Approved By
Shivam Rathore -
Updated on
September 11th, 2025 - Read Time
6 minutes
Noah’s Query: I recently switched from Outlook for Mac to Google Calendar. How can I convert OLM file to ICS format so I can import it easily?
Summary: If you recently transferred from Outlook for Mac to another calendar app like Google Calendar, you might be worried about how to move your calendar data. Outlook for Mac saves all your data, including calendar entries, in an OLM file. However, most other apps don’t support the OLM format. To transfer your events, you’ll need to convert OLM File to iCalendar, which is widely supported. This blog will explain the manual method and a professional DRS Softech OLM Converter Tool for bulk conversion.
Understanding OLM and ICS File Formats
- OLM is a file format used by Outlook for Mac. It stores everything, emails, calendar events, contacts, tasks, and notes in one file. The problem is, OLM files only work with Mac Outlook. You can’t open them in other calendar apps directly.
- ICS stands for iCalendar file. It’s a common format for saving and sharing calendar events. Many apps support ICS, including Google Calendar, Apple Calendar, Microsoft Outlook (Windows), and Thunderbird.
Easy Steps to Convert OLM File to ICS
- Initially, download & install the DRS Softech OLM File Converter.
- Now, pick: Select Files or Select Folder to load your OLM files.
- Then, you can check the added OLM file and select it to convert.
- After that, choose ICS Format from the available Saving options.
- Lastly, utilize advanced features as needed. Click Start Process.
Why Convert Calendar from OLM to ICS?
- Wanting to backup calendar events in a readable format.
- Easily share schedules with others.
- Also, using your calendar on different devices
Since OLM files can’t be read outside of Mac Outlook, conversion is necessary.
Method 01: Manual Method to Convert OLM File to ICS
Outlook for Mac doesn’t let you export the full calendar to ICS in one click. But you can export events one by one. Here is how you can perform it:
- First, open Outlook on your Mac.
- Then, go to your Calendar view.
- Now, select an event from the calendar.
- Next, drag and drop the event to your desktop.
- After that, it will create an .ics file.
- In the end, repeat for other events you want to export.
Limitations: Manually OLM File to iCalendar Conversion
While the manual method allows some flexibility, it has several drawbacks:
- You can only export one calendar event at a time.
- Exporting hundreds of events manually can take hours.
- There’s no way to select and export multiple events together.
- This method only works if you still have access to Outlook on Mac.
- Moreover, Outlook does not support exporting contacts to ICS format.
Method 02: Professional Tool to Convert OLM File to ICS
To overcome the limitations of the manual method, it’s highly suggested to use the professional DRS Softech OLM to ICS Converter. This utility is specifically designed to convert multiple OLM files into ICS format simultaneously. It offers a quick, reliable, and hassle-free conversion with zero data loss. You can maintain the original data formatting, structure, and metadata during the entire process. Along with that, you can also convert OLM File to HTML and other formats.
One-Time Service Available
If you only need to convert your multiple OLM files once, you don’t have to worry about tools or processes. Just share your OLM file with our support team, and we’ll convert it into a MBOX format for you. Also, it’s quick, affordable, and completely hassle-free.
Step-by-Step Guide to Export Calendar Data from OLM to ICS
- First, download and install the DRS Softech converter tool.
- Click: Select “Files” or “Folder” to upload your OLM files. Click Next.
- Then, preview (Cross-Verify) and select them to convert. Hit Next.
- After that, pick the ICS option from the available drop-down formats.
- Finally, use customized features based on your needs. Click Start Process.
Why Use DRS Softech OLM File Converter?
This tool is a professional utility designed to simplify and speed up the conversion process. It allows users to convert OLM files to ICS format in bulk with just a few clicks. Top features, like:
- Convert the entire calendar from OLM to ICS in bulk.
- Convert OLM File to HTML and other file formats.
- Easy-to-use interface, no technical skills needed.
- Maintains original folder hierarchy and calendar metadata.
- Furthermore, compatible with all the latest versions of Windows OS.
Is It Safe to Transfer OLM File to iCalendar With This Tool?
Yes, this tool is completely safe to use. Let’s understand with a real-life scenario: Aliza works as a Marketing Manager in a mid-sized company. He had been using Outlook for Mac for over three years. Recently, his company switched to Google Workspace. Initially, he tried to manually drag and drop his Outlook calendar events to get ICS files. But with over 300 scheduled events, this method was exhausting and slow. Instead, he decided to try the DRS Softech OLM Converter Tool. With a few steps, he converted his complete calendar from OLM to ICS in bulk.
Conclusion
In this detailed blog post, we explored the top two methods to convert OLM file to ICS. While the manual method is free to use and also capable of converting a small number of emails. However, it has several limitations that make it an unreliable choice for every user. Therefore, it’s highly recommended to use the professional tool. It gives you an error-free conversion with zero data loss. Additionally, download the trial version of this software to understand its features and performance.
Frequently Asked Questions
Ans: If you don’t have access to Outlook for Mac, you can use a professional tool like DRS Softech OLM Converter. It allows you to open and convert OLM files directly into ICS format without needing Outlook installed. This is a quick and easy way to extract your calendar data.
Ans: No, it won’t. The conversion process creates a new ICS file from your OLM file. Your original data stays safe and unchanged. The tool only reads your file to extract and convert the calendar information.
Ans: Some tools offer free trial versions that allow limited conversions. However, for bulk export or access to full features, you’ll need to purchase the full version of a trusted tool like DRS Softech OLM Converter.
Ans: Tools like DRS Softech OLM Converter are considered safe and reliable. They are developed by trusted companies and offer features like data preview, file protection, and accurate conversion.
