Convert OST to HTML Format Using Proven Methods

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Microsoft Outlook is a great email program, but it stores your emails in a proprietary format (OST) that only Outlook can read. This can be a pain if you want to access your emails on another device or with a different program. Besides this, you can convert OST files to a more common format, like HTML, which allows you to view your emails in any web browser. As a result, users want a solution to convert OST to HTML. 

At the end of this article, you will gain a clear understanding of the skills needed to convert your OST files easily. Stick with this article to know the step-by-step details of the method.

An Overview of OST and HTML

OST is a file format used by Microsoft Outlook to store data like emails, contacts, tasks, and attachments. The OST file allows a user to access emails offline on their device. This file format is only read by Outlook, where we can view our emails, delete unwanted emails, and synchronize our data. Due to Microsoft products’ preferred file format, OST has become the default format for storing and transferring data. 

HTML is a markup language often known as HyperText Markup Language. It is used to create web pages and structure the content on them. With the help of CSS, we can organize our content and create visually appealing web pages. HTML facilitates the design of the structure, whereas CSS provides a style and format for the structure.

Reasons Why You Want to Migrate Outlook OST File to HTML

Conversion of OST files into HTML provides a lot of benefits that include cross-platform accessibility, compatibility with other email clients, and offline access. There won’t be any compatibility issue, with the HTML conversion a user can access Outlook emails on any device with any OS. HTML is supported by almost all web browsers. To search for any information within any email, you can use the web browser search function to get it quickly.

Professional Method to Migrate Outlook OST File to HTML

In this section, we will describe how to convert OST files into HTML. One of the best most reliable and widely used methods to convert OST to HTML is the OST to PST Converter Tool. This tool allows us to convert OST files into many other formats, including HTML. Using this tool, any user can convert the OST file into HTML whether they have technical knowledge or not. Additionally, you can perform single as well as batch conversion of files. To know the process read the below steps.

Steps to Convert OST to HTML Format

  • First, download and run the OST to PST Converter Tool on the user’s device.
  • Next, click on Single File/Multiple Files or Folder.
  • Then, choose the OST files you want to export from.
  • Now, pick the folder or emails you require to convert.
  • After that, opt for HTML as a saving file format from the drop-down list.
  • Next, set the name and location for the resultant file.
  • At the end, click on the Convert button.


In this blog, we’ve learned, how to convert OST to HTML and provided an overview of OST and HTML file formats. Some reasons are mentioned to know why we are performing this conversion process. As we know there is no straightforward way to solve the problem. But we have described a simple way to that can help achieve the HTML file from OST by using OST to PST converter. We Hope you find this article beneficial.

Also Read: Ways To Convert OST To PDF

About The Author:

Pradeep is a dedicated technical content writer who thrives on the intersection of technology and storytelling. With a background in engineering and a passion for writing, he brings a unique blend of technical expertise and creativity to his work. Pradeep’s articles not only educate but also entertain, making complex technical subjects approachable and intriguing for a broad audience. His work has been featured in numerous tech blogs, making him a trusted source for tech enthusiasts and novices alike.

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