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Stellar® Converter for OST Technician
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Migrate OST file to Microsoft 365 or Save as PST

An advanced tool, recommended by Microsoft MVPs and administrators, to extract data from OST files without Exchange, export mail items to Microsoft 365 or Live Exchange, and split or compress PST files. The tool converts OST files of Outlook 2021, 2019, 2016, 2013, 2010, 2007, and 2003.

  • Converts multiple OST files in a batch
  • Splits or compacts the PST file
  • Migrate OST file to Microsoft 365
Free Download100% Secure Buy Now
Free Download100% Secure Buy Now

*Free Demo Version allows you to preview all the converted file data.

*Download the free trial version on your Desktop or Laptop to scan & preview your recoverable items.

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How to Migrate
Offline OST file to
Microsoft 365 or
Save as PST

play

When to Use Stellar Converter for OST?

Need-to-Export-the-Data-from-OST-to-Office
Need to Migrate Data from Hosted Exchange to Microsoft 365? New

Suppose, you need to migrate Data from Hosted Exchange to Microsoft 365 and you have several purged mailboxes. The only way to migrate the data of those mailboxes is through the OST files. However, this is possible if you can open the OST files and extract the data without Exchange. Stellar Converter for OST Technician edition converts such OST files and directly migrate the mailbox data to M365.

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Need-to-Convert
Need to Convert & Split an OST into Multiple PST Files?

It is common for an OST file to become very large with routine usage. You may want to convert such large OST files and extract the mail items into smaller files. Stellar Converter for OST Technician can convert OST files of any size and split the output PST into smaller files in size range of 1–50 GB. The tool preserves the original mailbox structure and data integrity in the resultant PST files.

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Need-to-Extract-the-Data-from-OST
Need to Extract the Data from OST Files in Bulk?

You may need to extract the mail items from OST files if your organization's users are changing to new systems with new Outlook profiles. The users' OST files in their legacy systems may have emails unsynchronized with the Exchange mailbox. Stellar Converter for OST can convert such OST files in bulk to allow consolidation of the mailbox data.

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AWARDS & REVIEWS

Most tested. Most awarded.

SpiceWorks

SpiceWorks

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Stellar OST to PST converter has worked wonders for Outlook 2003 to 2016 conversions of OST Files. This application I use and resort to.

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TechGenix.com

TechGenix.com

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Stellar Converter for OST helps admins extract all mailbox data such as emails, attachments, contacts, calendars, tasks, notes and journals from OST files, even if inaccessible for Outlook.

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TECH GYO

TECH GYO

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Stellar Converter for OST is efficient in OST file conversion to its corresponding PST file in an organized and reliable way.

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msexchange.org

msexchange.org

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It converts an entire OST file, or items within an OST file, into a PST without changing the original content format or structuring.

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Next of Windows

Next of Windows

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This conversion utility is one of the most competent and reliable tools that you can trust for your vital data conversions.

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Edward van Biljon

Edward van Biljon

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A brilliant piece of software provided by Stellar "Convert your offline OST to PST file with Stellar OST to PST Converter Tool to get back your Emails" can help you achieve this.

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Nuno Mota

Nuno Mota

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Stellar Converter for OST helps admins extract all mailbox data such as emails, attachments, contacts, calendars, tasks, notes and journals from OST files, even if inaccessible for Outlook, With this tool, we can easily convert any OST file to PST.

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Daniel Beato

Daniel Beato

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I have been using Stellar OST to PST converter since 2010 as an MSP provider using the Tech License and it has worked wonders for Outlook 2003 to 2016 conversions of OST Files.

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Prajwal Desai

Prajwal Desai

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If you need to convert an OST to PST quickly, simply go for Stellar Converter for OST. This multi-featured software is very easy to use and saves a lot of your time and effort.

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Features

Migrate Hosted Exchange Data to Microsoft 365

Migrate Hosted Exchange Data to Microsoft 365 New

The Technician edition can also export the converted OST file to an Microsoft 365 account. Select the "Export to Microsoft 365" option, and enter the login ID and password to export the OST data to Microsoft 365/M365. 
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Converts OST Files in a Batch

Converts OST Files in a Batch

The Technician edition can convert multiple OST files in a batch, allowing the user to extract the mailbox data in bulk. In addition, it allows the user to create and manage a batch file comprising the OST file details, such as location, destination path, start & end date, etc., to facilitate batch conversion of OST files.
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Previews the Mailbox Data

Previews the Mailbox Data

After converting the OST file, the tool displays a detailed preview of the mail items. The Preview window displays a list of all the Folders, Calendars, Notes, Journal, Tasks, etc., in the left pane. Clicking these items displays details, such as email body text, embedded hyperlinks, etc.

Extracts Data in Multiple File Formats

Extracts Data in Multiple File Formats

Stellar Converter for OST Technician allows the user to save the converted mailbox data in multiple file formats, including PST, MSG, EML, RTF, HTML, PDF, and MBOX. This feature allows you to access the data through different applications, such as browsers, PDF readers, etc.

Auto-Split Large PST Files

Auto-Split Large PST Files

The OST converter software detects large or oversized PST files and splits them automatically while saving the converted mail items from OST files to PST format. This safeguards PST files from damage caused by oversizing and helps prevent data loss. Besides, smaller PST files are easier to import and do not impact Outlook performance.

Auto-Locates and Lists Outlook Data File

Auto-Locates and Lists Outlook Data File

The software auto-locates and lists all the OST files stored at the default location on your system for quick conversion. You can also choose OST files manually if they are located in another folder or drive (internal or external). If you don't know the OST file location, use the 'Find' option to search and select the OST file for conversion.

Allows to Split the PST File

Allows to Split the PST File

In addition to the auto-split option, the Technician edition provides an advanced split option, allowing you to split the output PST file into smaller files. You can split PST based on size ranges of 1–50 GB while maintaining the original mailbox structure and integrity of the data. The feature helps in improving the manageability of large mailboxes.
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Compacts the PST File

Compacts the PST File

The advanced OST to PST converter tool can compact a large PST file. It can also extract, compress, and save attachments to a folder without losing the interlinking to access the attachments. The tool can also remove the attachments while saving the data in a PST file.
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Exports OST Data to Live Exchange

Exports OST Data to Live Exchange

The software can export the output PST file to a live Exchange Server. After converting the OST file into PST, select the "Export to Live Exchange Server" option and enter the Admin user credentials and destination mailbox details to export the data to the live Exchange Server.
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Converts OST and Extracts All Items

Converts OST and Extracts All Items

Stellar Converter for OST Technician edition can convert large OST files and extract all the mailbox items such as emails, attachments, contacts, calendars, tasks, notes, journals, etc., with 100% precision. The software also extracts the deleted mail items from the OST file.

Allows to Save and Load the Scanned File

Allows to Save and Load the Scanned File

The software can save the OST file 'scan' data in a DAT file and allows to load it later to recommence the OST to PST conversion process. This option helps perform the OST to PST conversion task at different times or on different machines.
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Finds and Saves Individual Emails

Finds and Saves Individual Emails

After the OST conversion, you can use the Find Message button. This opens a Find Message window. You can use it to search specific emails based on various parameters, such as ‘To,’ ‘From,’ ‘Subject,’ ‘Message text,’ etc. You can then right-click on the email to save it in PST, MSG, EML, RTF, HTML, or PDF file format at your desired location.

Extracts the Contacts in CSV File Format

Extracts the Contacts in CSV File Format

Stellar OST conversion tool allows the user to export all the contacts stored in the Offline mailbox (OST file) to CSV file format. The user can open the CSV file in a spreadsheet application such as Microsoft Excel and access and organize the saved contacts.
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Advanced Filter Options

Advanced Filter Options

The OST to PST converter software offers advanced filter options that help you include emails from ‘Junk Emails’ and ‘Deleted Items’ folders. You can also include mail items based on date range and exclude email address while saving them from the converted OST file to a new PST file or exporting to Office 365 or live Exchange.

Exports OST Data to Existing Outlook Profile

Exports OST Data to Existing Outlook Profile

The software converts the OST file and allows users to export the mailbox items to an existing Outlook profile. This option helps the user to view the consolidated mailbox data through the existing Outlook profile.
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Option to Relink the Attachments

Option to Relink the Attachments

Stellar OST PST converter tool provides an option to relink the compressed emails to their respective attachments saved in a separate folder. In addition, the tool provides an easy way to establish the links to attachments after converting and compacting the mailbox data in a PST file.

Steps to Use Stellar Converter for OST Technician Works

Step 1: Launch Stellar Converter for OST. Click Browse to choose the OST file manually (if you know the location), or use the Find option to search and select the PST file when the location is unknown.

Stellar Converter for OST Technician

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CASE STUDY

How Stellar Converter for OST Software Helped Southend-on-Sea Borough Council

The client organization retrieved vital business mailbox data that would have otherwise been lost, ensuring the integrity of emails, attachments, and components for archival purposes. Stellar Converter for OST facilitated rapid extraction with minimal administrative effort, delivering high-precision, efficient, and reliable results to meet the client's needs effectively.

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Customer Verdict

This is a very handy and easy to use software that I would recommend to anyone.

Southend-on-Sea Borough Council, Essex, England

USC Inc. Successfully Migrates Mailbox Data From OSTs To Office 365

USC achieved seamless 100% mailbox migration to Office 365, including data from OST files, meeting deadlines with minimal manual involvement. The OST to PST converter also recovered deleted mailbox data without risking file corruption.

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Customer Verdict

This is a very handy and easy to use software that I would recommend to anyone.

United Software Consultants, Inc.

Marcrom restores its new server with stellar's ost to pst converter

Ivan found it challenging to select effective software but was highly satisfied with Stellar Converter for OST on his third attempt. It fulfilled all his business needs and outperformed other options, prompting him to endorse Stellar Data Recovery's superior products.

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Customer Verdict

This is a very handy and easy to use software that I would recommend to anyone.

MARCROM

What Customers Say About Our Stellar Converter for OST Technician Software?

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Trustpilot
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Technical Specifications

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About Product
Stellar Converter for OST Technician
Version: 12.1.0.3
License: Single System
Edition: Technician & Toolkit
Language Supported: English, Deutsch, Français, Italiano, Español, 日本語
Release Date: November, 2023
System sequirements
System Requirement
Processor: Intel compatible (x64-based processor)
Memory: 4 GB minimum (8 GB recommended)
Hard Disk: 250 MB for installation files
Operating System:
(64 Bit only)		 Windows 11, 10, 8.1, 8, 7
Documents
Documents

Product Related Articles

Start Using Stellar Converter for OST Technician Today.

  • No File Size Limitations
  • Trusted by Millions of Users
  • Awarded by Top Tech Media
  • 100% Safe & Secure to Use
Free Download100% Secure
Free Download100% Secure Buy Now

*Free Demo Version allows you to preview all the converted file data.

*Download the free trial version on your Desktop or Laptop to scan & preview your recoverable items.

FAQ

A.

Stellar Converter for OST Technician Edition is the best option to migrate Hosted Exchange mailboxes to Microsoft 365.

  1. Run Software Technician Edition
  2. Select .ost file
  3. Click 'Convert' to start conversion process
  4. Click on 'Save Converted File' button
  5. Now Select 'Export to Microsoft 365' and click on 'Next' button
  6. Enter Microsoft 365 credentials and click OK.
  7. OST file has been exported to Microsoft 365 directly.

The software will scan the OST file and list all the mailbox folders. You can preview its items and migrate them directly to Microsoft 365. Download Now

A.

The demo version of the software is for free evaluation and analysis.The software converts the Outlook OST file and allows to preview all the mailbox data.To save the converted file as PST, or to compress, or split before saving, you need to register for the full license.

A.

Yes, you can export all contacts present in your OST file to CSV file but some important fields will be filled with 'Demo' string.

A.

Please follow the following steps, if you are facing the problem.

  • Open 'Control Panel'
  • Double Click the 'Mail' folder
  • Select 'E-mail Accounts' in 'Mail Setup' dialog box (This step will lead to a configuration of your email account)
  • Close the dialog box, after the mail account is configured and open MS Outlook

How to view a Newly Created PST File

To view a newly created PST file with the software, you can either import the PST file in MS Outlook or follow the steps mentioned below.

  • 'Open > Outlook Data File from File Menu'
A.

Yes, with Technician version, you can convert over-sized OST files. The good thing with the software is that you have the option to split the converted over-sized file at the time of saving it.

A.

The time to scan the OST file depends primarily upon its size. You can view the progress bar during scanning that indicates that the process is going on. After the process is over you will get a message - 'Scanning of selected OST file completed'.

A.

To locate and access the contacts; first, you need to import the new PST file to MS Outlook. Then follow the steps mentioned below.

  • Open MS Outlook
  • Press the key combination 'Ctrl+Shift+F'. The 'Find Message / Advanced Find' window opens up
  • Under the 'Look For' tab, select 'Contact'.
  • Click on the 'Browse' button
  • Select the imported PST file
  • Click 'Find Now'
  • You can now see all the contacts.
A.

Yes, you can view and save the entire Log of the process followed during the software run. Follow the steps mentioned below.

  • Select 'View Log Report', in the 'View' menu
  • Click 'Save Log' and in Stellar Converter for OST Technician dialog box to any location you desire
  • You can now see all the contacts.

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