Looking to import OST file in Outlook 2019?
Bad news is that OST cannot be imported technically, as PST can be. Good news is that you can convert the data in OST to PST and then import PST as usual.
Though this sort of file conversion with email data is not simple. Since it is not possible with any official in-built features, there are few third-party tools to do that. And that’s where most of the accuracy and efficiency of the process depends. A large portion of OST to PST Outlook 2019 converters do not offer adequate inner system to process information cleanly.
Way to Import OST file in Outlook 2019
That’s what “OST Extractor Pro” from USL Software changes for good. It is the only converter available that has the power to handle the rich and complex elements inside data files like OST. The dedicated algorithms for each category of data items ensure clean and thorough conversion across the entirety.
“OST Extractor Pro” also comes along with some new features that you don’t get with generic tools. It will help you import data from OST file in Outlook 2019 in a better way that’s more suitable to your unique needs. For example, you can use the filter options to exclude some of the folders that you don’t need to import. You can also split large PST files into smaller ones, making it easier to import them. Lastly, the tool can even convert OST to other formats, like Apple Mail, Thunderbird, Postbox, Entourage, and even standard files like EML and MBOX.

Here are some more points about the tool:
Easy to Use Interface
Built with beginners in mind. Therefore, even though it has advanced features that truly ease the large-scale projects, it has simple interface that can be used by anyone. This simplicity married with sophistication makes it the best solution in the market.
Convert OST file in many other formats
The availability of other formats than just PST turn it from a mere file converter to a full email migration software that can be used in many different scenarios and needs. The ability to handle large OST files allow users with large database to stop worrying about oversized.
Support Unicode Contents
It supports data items like Unicode text (non-English) including Chinese and Japanese characters that are encoded using DBCS also called double-byte characters that are otherwise a huge challenge.
Never Mesh-up with your organized folders
The tool creates the folders from OST to PST without changing the structure. All the folders will be mapped on to the new files while preserving the hierarchy or arrangement. This is vitally important for users with many folders and sub-folders because it can be immensely hard to organize your emails after conversion if the folder hierarchy is lost.
Works in both Mac & Windows
It is available for both Mac and Windows version. In case, you want to simply convert OST to PST, Windows version is the best, but if your goal is to get the data from OST to email clients for Mac OS, clearly the Mac version would be a right fit for you.

As with every USL Software’s tool (the company who developed it), you get full tech support behind you. Have any queries or face a setback unique to your problems? Don’t worry. Get in touch with the support staff and expect to get the resolution in no time.
Here’s How to Import OST file in Outlook 2019
- Install ‘OST Extractor Pro’ in Mac or Windows.
- Launch it and click on “ADD OST“.
- Select OST file (*.ost), then click on “Open“.
- [Optional] Check on “Ignore Empty Folders” to eliminate empty folders from conversion.
- [Optional] Select folders in preview panel what you want to convert.
- Then select output format as “PST file (*.pst)” for Outlook 2019.
- Now click on “Convert“. That’s it.
You can get a free trial demo here. This limits the items to ten per folder inside OST files but gives you the free pass to evaluate every other aspect of “OST Extractor Pro.” It’s the best way to see how the tool performs with specifically your data files and your computer. Inspect closely the accuracy, speed, and ease of use that the tool is known for!
To import OST file in Outlook 2019, you can convert the OST data file to PST with “OST Extractor Pro’.