How to Export Outlook Emails from OST to MSG Files in Bulk (Step-by-Step Guide)
May 4, 2026
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If you are also one of those users who want to preserve Outlook emails from OST to individual MSG files, then this blog is for you. In this article, we will explain the methods to export Outlook emails from OST to MSG files in bulk.
Apart from the duty of sending and receiving emails, MS Outlook also provides the feature of auto-saving the user's profile data. After sending and receiving each email and other things, Outlook automatically saves it to the user’s local storage. Outlook stores various sorts of files to save profile data. One of the file formats that Outlook uses to save a user’s profile data is “OST” (Offline Storage Table).
This file type is used by Outlook to save a copy of the Exchange and IMAP server mailbox. An OST file might include a significant number of mail folders, contacts, calendars, and more. Hence, several users face problems in managing their vital data from OST files. As a result, many users have to export emails and other data from OST to other files.
Outlook allows saving emails and other objects in MSG files individually. Now, let’s move on to the process of exporting emails from Outlook OST to MSG files.
Best Way to Export Emails from OST to MSG Files in Bulk
Outlook has the facility to export mail from OST files to individual MSG files. However, the manual method is limited in many ways. Users can extract a single email to an MSG file at a time. Also, manual export of emails from OST to MSG files is only possible with a healthy OST file. So, the best way for the consumers is to go for the automated program like SYSessential OST to MSG converter software.
This program helps users in exporting emails from corrupt, encrypted, and orphaned as well as healthy OST files simply. Users can export multiple OST files to MSG files. This intelligent solution can extract contacts and calendars from OST files, not only emails
How to Export Emails from OST to MSG Files using OST Converter
- Download and install the OST to PST Converter Software on your Windows-based PC.
- Run the software and click on the Select OST option from the menu bar.
- Choose Single File Conversion or Bulk File Conversion Mode and click the Next button.
- Add the OST file/folder to the software and click on the Start Scanning button.
- Extract all mailbox folders and items from OST files & preview emails, contacts, calendar, etc. from OST.
- Select the desired folder from the OST file and click on the Save OST option from the top menu.
- Choose Export to MSG from the list of conversion options.
- Use mail filter to choose mails of specific dates from OST Files and naming convention option
- Choose a destination to save output MSG files after conversion.
- Finally, click on Convert to start exporting emails from OST to MSG files.
Summary
Manually saving Outlook OST emails to MSG files is a time-consuming operation, and it won’t work with orphaned or inaccessible OST files. So, if you want to export OST emails to MSG files in bulk with a fast process and security, you must utilize automated solutions. OST Converter provides an option to users to convert emails from all types of Outlook OST files to MSG in bulk. Download and try its demo edition today to know more about its function.
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