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2 Impressive Methods to Change OST File to PST Format

Understand the most effective and accurate solutions to change OST files to PST format by using the best methods.

By Lovely BaghelPublished 2 months ago 4 min read
Change OST File to PST

Summary: The most flexible files that Outlook can handle offline are OST files. But corruption occurs for a variety of causes. Users must convert their OST files into PST files in order to save them. We have covered free manual OST to PST file conversion techniques in this article. For a hassle-free conversion, you can also use the OST to PST Converter utility.

What are OST and PST files?

OST Format: The term "OST" refers to an offline Outlook data file that may be accessed offline when there is no internet connectivity. It maintains a local copy of contacts, calendars, and other mailbox data files on the local computer system. Data is stored in the OST file format in some types of accounts, including Outlook 365 accounts, IMAP accounts, Exchange accounts, and accounts.

PST Format: PST, or Personal Storage Table, is a widely used Microsoft Outlook data file that stores emails, calendars, contacts, and other data for POP3, IMAP, and web-based mail accounts. It keeps data on Microsoft Outlook. PST files are simple to import and open.

Benefits of Change OST File to PST Format

OST files are useful in various situations, such as the following, since they are the data files linked to Exchange accounts that are connected to Outlook.

  1. Some user emails on the Exchange server are erased.
  2. Desire to make a backup of a few Exchange mailboxes (prior to mailbox deletion)
  3. An Exchange user has some unsaved data in his corrupted OST file, and he wants to reconstruct it.
  4. The users really want their emails back, but the Exchange accounts are unreachable because of corruption.
  5. To resume email correspondence in the event of an Exchange outage or inaccessibility
  6. You will need to convert Outlook OST file to PST in order to access your previous emails if you are changing email clients and your new program does not support OST files.
  7. If you are unable to access your email account because it has been compromised. In this instance, you can read your previous emails and possibly restore any lost data by converting the OST to PST.

Method 1: How to Change the OST File to PST Format Manually

We'll examine how to manually save OST in PST format in this section.

  1. In the first step, establish MS Outlook on your device, and then go to the File menu.
  2. Now, opt for the Import/Export option.
  3. After that, choose Export to a file.
  4. Then select Outlook Data File (.pst).
  5. Next, decide whether to convert a particular folder or the whole account.
  6. Afterward, ensure the Include subfolders box is checked.
  7. Lastly, proceed to select a destination for the conversion, and then press Finish.

But keep in mind that using the manual method can be risky because of their some demerits.

Some Major Demerits of This Manual Method

  • It takes a lot of time, and having technical knowledge is mandatory.
  • So many chances of human errors.
  • It cannot convert multiple OST mailboxes to PST format at once.

We advise looking at the professional technique if you're searching for a quicker and more dependable solution.

Method 2: How to Change OST File to PST Format Professionally

The professional OST to PST Converter tool is the most advanced and perfect solution to export OST to PST as well as various file formats such as EML, MSG, MBOX, PDF, and so on with their attachments like email contacts, calendars, messages, tasks, notes, etc. It assists in importing the OST mailboxes to many other email clients, for example, Gmail, Yahoo Mail, Hotmail, Office 365, etc., in batches at once without losing integrity. Moreover, it has the ability to skip all duplicate OST mailboxes during conversion and offers the feature of managing the folder structure as per the actual files. This utility is perfectly and effortlessly supported on all Windows OS versions, including the latest versions of Windows 11.

Working Process of This Professional Tool to Change OST to PST

  1. Firstly, install the OST to the PST Converter tool after downloading it.
  2. Then, launch the software, then choose an OST file by clicking the "Add File" button.
  3. Press the "OK" button repeatedly until the scanning is finished.
  4. After that, check the OST mailboxes now before converting them to PST files.
  5. To save the recovered OST file, click the "Save" button and choose the destination folder.
  6. Next, in order to convert the OST file to a PST file, click the "OK" button.
  7. Lastly, the PST file is successfully created from the chosen OST file.


The process of changing OST files to PST is essential, however, users can accomplish this with the free manual techniques listed above. Nevertheless, we advise using our suggested tool if you're looking for the quickest and most dependable option. It is user-friendly, quick, and highly regarded by many.

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Comments (2)

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  • henory2 months ago

    I have the best and most impressive methods to change OST files to PST format should try to convert OST files with the help of ToolsCrunch Mac OST to PST Converter Tool is the best and most user-friendly solution that can be helpful for all non-technical users to convert ost to .pst format without MS Outlook and technical errors. This utility has an uncomplicated interface through which users can non-technically interact with its features. It has the best features that can work without Outlook and Exchange Server you should install and operate a free demo. Users can install it on Windows and Mac operating systems. Read More:

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