How to access OST file in Hotmail (Outlook.com)?

Published On - April 22, 2025 by Nasir Khan | Reading Time: 4 minutes

We know that OST file is a file format created by Outlook when configured with the Exchange Server. OST file can be opened only with the same Outlook account configured with the Exchange Server. However, in scenarios where the user wants to access OST file in Hotmail (Outlook.com), it is not as simple as it looks. So, in this blog, we will learn how to access the .ost file in Hotmail. Be with the blog and get OST file data in Hotmail.

What are the possible ways to access OST Data on Outlook.com?

1. Configure Hotmail with Desktop Outlook and Convert OST to PST

We know that a .pst file can be added and opened with any Outlook account. So, if you convert OST to PST and connect Hotmail to Outlook, you can access OST file in Hotmail (Outlook.com).

Steps to Configure Hotmail Account to Outlook Application:

1. Open Outlook desktop application.
2. Click on the File menu and then select the Add account.
3. Now, enter your Hotmail email address and password.
4. Click Finish, and your Hotmail account will be configured on the Outlook desktop.

By following the above steps, you can add Hotmail account in the desktop Outlook but still OST to PST conversion task is remaining. Hence, this way is not a recommended way for the professionals.

2. Directly Export the OST File Data to Hotmail (Outlook.com)

Manually exporting OST file data in Hotmail (Outlook.com) is like walking on eggshells. No direct manual method is available to execute this; hence, a professional utility is a must to access OST file in Hotmail (outlook.com). Regain OST Converter tool is a one-stop solution for handling OST file-related tasks. See how simply you can export OST to Hotmail.

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1. Install and launch the Regain OST Converter.
2. Add Outlook OST file (you can add single or multiple .ost files).
3. The software will scan the OST file and show a preview of the data within it.
4. Now click on the Cloud Migration button given on the ribbon bar.
5. Select the Hotmail/MSN/Outlook.com option as the target.
6. Enter the login credentials of the Hotmail account; once connected, start exporting.

By just following the above-mentioned steps, one can effortlessly access OST file in Hotmail (Outlook.com).

See What Facilities Regain OST Converter Offers:

• Regain OST Converter can migrate your OST files into several email servers/platforms such as Hotmail/Outlook.com/MSN, Gmail, Yahoo Mail, Amazon WorkMail. Moreover, it can export .ost to Exchange On-Premises/Online.
• With the same utility, you can convert OST to PST, EML, MSG, vCard, TGZ, ICS, MBOX and PDF-like file formats.
• The Regain OST Converter does not put any restrictions on adding multiple OST files together. You can add and convert OST files without any size restrictions. The software works accurately with multiple OST files.
• This Regain software is compatible with all Windows Operating System versions.
• The Regain OST software offers a very convenient GUI. To use this software, you don’t need to have any technical expertise. It is designed in such a way that any novice user can use it easily.
• Regain OST Converter software is one of the finest recovery tools. It easily recovers corrupted/inaccessible OST files. The software converts every bit of data from added OST files.
• It maintains the hierarchy throughout the process with full data Integrity.
• Users also get a free demo version of the software; moreover, free technical support is also available.

Gist of the Blog:

In many scenarios, there is a need to access OST file in Hotmail (outlook.com). But, accessing OST file data is not as easy as it looks until you have Regain Software for your task. With Regain OST Converter, you can easily migrate OST data to a Hotmail account. Moreover, users get free technical support and a demo version to evaluate the software working.

Frequently Ask Questions:

Q. Can I add and open an OST file in Hotmail (Outlook.com)?

A. No, you can’t add and open an OST File directly in Hotmail because Hotmail (Outlook.com) is a web-based service that does not support opening OST files directly.

Q. Is there any way to test this utility before purchasing the license?

A. Yes, this allows users to explore this utility before purchasing the license. Users can simply install this utility and run the OST exporter task. With the demo version, you can process 30 items per folder, while there are no limitations with the licensed one.

Q. Is it possible to directly import the OST data into Hotmail (Outlook.com)?

A. With advanced third-party tool like Regain OST Converter, you can easily export OST file data to Hotmail (Outlook.com).

Q. Can I open the OST file for free with Regain OST Converter?

A. Yes, you can open and view the OST file for free with Regain OST Converter. With the demo version, you can open the OST file, but to save its complete data, you need a license.