How to Convert OLM File to CSV Format | Simplest Guide

Written By Edwin Stark
Updated on June 2nd, 2025

Summary: Microsoft Outlook for Mac users often deal with the OLM archives filled with their crucial data. The OLM contacts maintain detailed information, including the user’s name, email address, phone, birthday, and more. However, accessing these data in OLM is quite difficult to understand, and thus, storing it in a tabular format is best. So, convert OLM file to CSV by utilizing the SysInfo OLM Converter and some easy, free ways through this guide post.

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Who Needs to Convert OLM to CSV and Why?

System Admins, Sales Team, Data Analysts, Legal Teams, and many more similar people require changing OLM to CSV. The reasons for it could range to any lengths, such as:

It enables you to use Outlook contacts in campaigns with Salesforce, HubSpot, Zoho CRM, or Mailchimp.
With CSVs, you can seamlessly filter data and enable custom reporting without Outlook or Exchange.
CSV is a well-known data-preprocessing format and helps with the model training for AI processing of emails.
You can access, read, or even edit a CSV file on Windows, Linux, and macOS, unlike the OLM, i.e., Outlook-specific.
Import Outlook OLM to Gmail, Google Sheets, Excel, or other programs to create address books by re-importing to CSV.

After getting a clear understanding of how workflow is better with the use of CSV. Get to know the relevant procedures that make conversion possible without much delay and effort.

Method 1: Convert OLM File to CSV- DIY Guide

Before proceeding, users must know that the given method is outdated. The steps can be executed only if still working on older Mac versions. The new versions don’t support direct conversion of OLM emails into CSV, but a workaround is still there to export Contacts. The detailed guide for the steps is as follows:

Old version:

First, use the Import/Export wizard in your Mac Outlook and import OLM.
Next, after the file is imported, again open the wizard and choose Export to a file.
Proceed with Next and use the Comma Separated Value (.csv) option as the output format.
Click Next and choose the OLM folder to import from. Further, pick a target destination.
Finally, checkbox the Export and press Finish to export OLM to CSV.

New version:

In Outlook for Mac, open the Contacts section, and pick your contacts to move.
Then, access the File tab menu and press the Export option.
Afterward, choose Contacts to a list (tab-delimited text) and save the file.
It is saved in the .txt format. Later, convert TXT to CSV and open it with Excel to verify the formatting.

By this, you can convert a Mac OLM file to CSV, but there are some limitations, discussed at the end.

Method 2: Convert OLM File to CSV- Automated Approach

With a wide range of options available, I suggest that you try the OLM File Converter Software for effective conversion. The software is highly flexible, needs no technical expertise to run, and has fast processing. Additionally, it enables a secure, accurate, and precise OLM to CSV conversion with no losses. Moreover, the exceptional utility runs well on all system environments, despite the version, and needs no Mac Outlook.

Know-How to Convert OLM to CSV

Run the professional utility. Hit Continue.
Use Select Files/Select Folder to add OLMs.
Then, click Next and expand the tree format.
Proceed by choosing folders from the tree structure.
Further, hit Next and pick CSV format for the new file.
At last, give a location and convert the OLM file to CSV by Convert.

Why Manual Method is not Preferable?

In comparison to the professional tool, the manual method lacks the following:

The old format works only for Mac versions up to 2011, and the new version only exports contacts.
Bulk conversion is not possible anywhere, it can be done with the tool within seconds.
For the manual, Mac Outlook installation is mandatory, which isn’t needed with the tool.
The manual method will take time and still no guarantee for secure transfer, unlike the automated tool.

Conclusion

Relying solely on free methods to convert OLM file to CSV can lead to data inconsistencies. Instead, using the expert tool will give you batch import options, remove duplicates, and save you time and effort. Moreover, it also has a demo version that can be used to convert a few files for free and test the software.

Frequently Asked Questions

Q. How to convert OLM files to CSV format?

Ans- Use the OLM to CSV Converter with these steps to convert the entire mailbox straightforwardly:
1. Start the tool and add the OLM data files and folders.
2. Then, select the needed folders after the preview.
3. Click Next and opt for CSV. Choose a target destination.
4. Finally, tap Convert and change the file format to save as CSV.

2. Can I convert the OLM file to CSV format in bulk?

Ans- Yes, execute the batch conversion operations to convert the Mac OLM file to CSV. For this, you need to use a prominent tool like OLM File to CSV Converter, which extracts data without affecting the formatting and integrity.

About The Author:

Edwin Stark

Edwin Stark is a Technical Content Writer who specializes in writing about databases, e-mail recovery, and e-mail migration solutions. He loves researching and developing content that helps database administrators, organizations and novices to fix multiple problems.