Convert OST to PST, MBOX, EML, Apple Mail, Thunderbird

OST Extractor Pro” – Most Polished and User-friendly tool to convert OST to PST (Mac & WIndows Outlook), Apple Mail Archive, Mozilla Thunderbird and Postbox.

OST Extractor Pro” is a tool that convert OST to PST, MBOX, EML, Apple Mail Archive, Mozilla Thunderbird, Postbox. Unlike other OST to PST converter, “OST Extractor Pro” has a complete set of features that you need to convert files efficiently without having to compromise with the data accuracy. It’s also the only converter in both Windows and Mac version.

  • Full Satisfaction Guaranteed

  • Free Trial Version Available

  • Around the clock Customer support

  • Full Data Accuracy of Converted Files

  • Available in Both Mac and Windows Version

The features and the benefits of going with USL Software are unmatched with any other tool or the provider. With ‘OST Extractor Pro,’ you get the best possible solution to convert your data files (OST to PST) accurately, which is otherwise a time-consuming and daunting process for many.

What are the nature of OST and PST files?

To begin, you need to know what are these files and what do they serve? To put it shortly, these are called data files used to keeping all the data that an email client like Outlook handles. But OST and PST are both different types of data files used by Outlook. The difference is in the first letter of the name itself.


OST refers to an offline storage table. It is primarily implemented for allowing users to access data even offline. Outlook downloads all emails from the servers into an OST file. This is available even offline to access and make changes. All the changes are later synced to the servers using the internet.


PST refers to Personal storage table. It is primarily used for tasks like data migration, backup, import/export, etc. It’s a personal data file, not an integral functional file like OST.

Where does OST to PST Conversion Need Comes from?

If you are looking for an OST to PST converter software, you probably know why you need to convert the files. But for the sake of giving proper introduction, here’s why OST to PST conversion is an essential or the only solution in certain problems relating to data files for Windows Outlook.

The differences (or rather being unaware of the differences) between both files can lead to certain problems with users.

Most users often when leaving a corporation, copy their OST file under the assumption that they can later restore all their personal data from it. However, OST is a format that only works in conjunction with the original email account that created the file in the first place. Without which, the data inside the OST file is stuck and is inaccessible.

You can’t simply import OST file into Windows Outlook like you can to PST.

There are other cases where you can be stuck with an OST file/s without any option to access the data within them. Except converting them to a PST file. Then, you can easily import those PST files back to Windows Outlook, or even to Mac Outlook.

“OST Extractor Pro” is the Only Solution that Works as Expected!

Converting OST to PST isn’t as straightforward as it may sound. It’s nothing like a simple file converter or the renaming of the extension of files. Email files can be rather too complex and the data extraction can turn out to be a nightmare if you don’t have proper tools.

ost to pst converter

That’s why most of the traditional applications have a hard time converting data as a user would expect. They often end up with data fragmentation and a vastly dissimilar data structure than original. This is called the data fidelity loss where the contents, properties, and the hierarchy don’t match the original. This, along with other many issues, the typical OST to PST converter can be very frustrating for both advance users and beginners.

But that’s where “OST Extractor Pro” comes into play. It’s a tool developed by USL Software to make this job as easy as possible without trading off other essential requirements like data accuracy, protection for fidelity, speed, interface, and more.

OST Extractor Pro” developed keeping all the complexities, risks, and users’ demands in mind. It’s the only software that features the full package needed to professionally perform the conversion.

In the section below, we’ll talk about its best features and why you consider it as the top application to converting OST to PST files.

Finest Features that made it the Best Converter today!

Here is a list of the finest features of ‘OST Extractor Pro’ that shows why it is the best converter for this job.

Handles all sorts of OST files

Batch Conversion

The tool can swimmingly operate with multiple OST files at a single time without weakening other performance elements. (Like the data-rate, data integrity, etc).

Large OST files

Along with converting files in bulk, it also conducts the conversion of massive OST files without clashing with other aspects of a data conversion.

Handles from all sources

The tool is fully capable of converting OST files created by any Outlook version (from 97 to 2016 edition), Office 365, and even Exchange servers.

Converts databases in their entirety

It’s no wonder that the traditional and ordinary OST to PST converter have a tough time converting complex elements inside the files. Emails are complex and are getting more composite in their formation every day. Archetypical algorithms often fail to get to all these components without facing data integrity loss. That’s not a problem with “OST Extractor Pro.”

This tool converts everything in its fullness without resorting to partial conversion.

Here’s a list of complex elements that are frequently meshup, but this tool gets it right every time!

  • Headers and metadata (to, from, cc, bcc, subject)
  • Time and date stamps
  • Email attachments
  • Graphical data
  • Nested emails and their structure

Translates Folder Hierarchy Without Discontinuity!

Keeping the folders’ hierarchy/structure is a hard job for any converter. “OST Extractor Pro” has characteristic logic for such informational details to extract and translate without any loss to its originality. Which means, the tool will convert the data from OST to PST files while keeping all folders and their structure exactly as original.

Supports all Languages

Certain languages and their text characters are harder to process during data conversion than a standard ASCII encoding standard (used for English). An example would be – Chinese characters encoded using double-byte (DBCS). “OST Extractor Pro” has exclusively dedicated algorithm for such intricate characters, outputting the result to PST files without missing any words. It performs the cleanest possible conversion of your data within the email bodies regardless of the language that you use to communicate with in your emails.

Confines output PST files to acceptable sizes

A large OST file would result in a large PST file after conversion. If that output sizes gets too big, it can be an unnecessary annoyance in dealing with those PST files, especially during the import process. “OST Extractor Pro” allows users to limit the output size to whatever they think is going to be okay for them. The tool automatically creates/splits the output files into multiple smaller files under the specified limit.

Converts OST to PST Files…and MORE!

The tool’s major feature is to convert OST to PST files. It also allows users to convert emails inside the OST files to other formats such as MBOX, EML and EMLX format. It can be highly valuable in certain situations where PST isn’t the appropriate format. For example, if you have an OST file but not Outlook client, you can convert OST to MBOX to view the email contents instead of converting it to PST.

Fast and interruption-free Conversion

The smart algorithms and a precise framework allows the tool to work with the data smoothly and interruption-free, reducing the overall time required to convert the files to half than the typical time-frame with other tools. This speed makes the job much more productive for both work-based conversion projects and for basic home users. Because who wants to spend unnecessary long hours for something that can complete in a few minutes.

Other Additional Benefits with USL Software

USL Software is known for best customer experiences through their software. It’s not always about the features or about the software itself. But you need to consider the benefits, support, and other services to the users. That ultimately makes an email migration tool, or basically any software service, successful. And with “OST Extractor Pro,” you get all of that.

  • 24×7 customer support
  • Free updates for lifetime
convert ost to pst

Download the Free “OST Extractor Pro” Now and Check it out!

No amount of reading about the features or the reviews or testimonials can ever amount of personally checking out the software application directly.

That’s why USL Software allows a complete version of “OST Extractor Pro” as a free version to download. It only converts ten items per folder, but it still gives access to the complete set of features.

Download it now and check it out at

Get ‘OST Extractor Pro‘ to convert ost to pst, mbox, eml, Apple Mail, Thunderbird and Postbox.

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