How to Convert OLM Files to HTML Format? Best Ways

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Updated on
October 16, 2025

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6 minutes Read

Summary: When using Outlook for Mac, you may have noticed that emails, contacts, calendars, etc., are stored in an OLM. While OLM files are easily accessed with Outlook, they are hard to access without it. Because of this reason, countless users want to convert their OLM files to HTML format. HTML allows users to easily view their emails in a browser, share, or publish them to a website. In this blog post, we will describe how to convert OLM Files to HTML either manually or professionally. The automated EmailDIver OLM Converter Tool will safely and accurately complete the conversion for you.

Why Users Choose to Convert OLM to HTML?

Users might find that there are multiple good reasons to convert their OLM files to HTML. Have a look at a few of them:

• HTML files are easily accessible using any web browser (e.g., Chrome, Safari, Edge, etc.).
• HTML files can also be shared or uploaded to any platform without any worry about compatibility.
• Also, the HTML file displays email data in a structured and readable format.
• Users do not need Outlook or any email client at all to open HTML files.
• And HTML format retains the layout, fonts, hyperlinks, etc. of emails.

Reliable Methods to Convert OLM Files to HTML Format

There are two main approaches to convert OLM files into HTML

1. Manual Method: Using Outlook’s built-in options.
2. Automated Method: Using a professional tool for precise and safe conversion.

Manual Methods to Convert Mac Outlook OLM File to HTML

Here are some best, simple, and free manual methods to complete the conversion of OLM files to HTML. These methods are best for users looking for small migrations and have a budget issue.

Method 01 to Convert an OLM file to HTML

This method is suitable if you are only looking to convert a limited number of emails.

1. First, open Microsoft Outlook for Mac on your system.
2. After that, locate and select the email you want to export.
3. Then, select File → Save As and select Web Page (.html) as the file type.
4. At last, select the desired location to save the web page file and click Save.

Method 02 to Migrate OLM to HTML

1. Firstly, start Outlook for Mac and select the email(s) you want to convert.
2. Then, drag those emails into a folder on your Mac using Finder to save them as .eml files.
3. Further, right-click your desired .eml file and choose Open With > Safari or other browser.
4. After that, once it opens in the browser, right-click the message and select Save As > Web Page (.html).
5. Finally, save it to your desired location.

Limitations

• When working with manual methods, you have to convert each email individually, which is time-consuming for larger mailboxes.
• There is no option to bulk convert multiple emails or folders to HTML at the same time.
• There is a high probability that everything, including attachments or formatting, may not convert properly.
• If you are not knowledgeable about Mac, then it can make these methods slightly difficult.

Professional Approach to Convert OLM Files to HTML

The Proficient OLM Converter tool is an ultimate solution to convert desired OLM files to HTML format. The tool can easily overcome all the limitations possessed by the manual method in conversions. The tool handles bulk conversion of OLM easily without any data loss. Additionally, it offers various advanced features to users, such as duplicate remover, date filters, including attachments or not, and more. Also, the tool focuses on the authenticity of conversion and keeps user data safe. Moreover, the software has strong data privacy standards, which keep user data safe and do not store any important data.

Steps to Professionally Convert OLM to HTML

1. First, open the converter tool on your system and click the Continue button.
2. After that, click Select files to select and open your OLM files and click Next.
3. Then, select your desired OLM files emails from the folder hierarchy, preview them, and click Next.
4. Further, select HTML from the available saving File Formats.
5. Next, apply advanced filters and define the saving location.
6. Finally, click Convert to start the migration process.

Why Choose OLM Converter Tool?

Conclusion

Altogether, this blog discusses the best reliable methods to convert OLM files to HTML format. Here, we have shown some manual methods along with a professional OLM Converter Tool. If users need to convert only a small number of OLM files, they can choose the manual method. However, in the case of bulk conversion, we strongly recommend the specialized tool. The tool is capable of handling bulk OLM file conversion, keeping user data safe. Moreover, the tool provides one-time service and multiple licensing options to help users choose based on their requirements.

Frequently Asked Questions

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