I would suggest you try the unique third-party tool name of KDETools Free OST file Converter Tool to export ost to pst outlook 2016 easily.. The free unlimited ost to pst converter can transfer data files from Outlook OST file data into many other email clients’ file formats such as PST, EML, Gmail, MSG, PDF, EMLX, HTML, DOC, ,zimbra, olm, EMLX, Office 365 format and etc...
How to Convert OST to PST Manually?
Launch the MS Outlook Best OST to PST Converter tool on your system.
Go to the File tab.
Select the Import/Export option.
Click on Export to a file.
click the quickly Next button.
Now choose thee Personal file folder (.pst)Click on the Next button.
Go to parent root and click on Include Subfolders.
more info- Convert OST to PST Manually
Download best ZOOK OST to PDF Converter to batch print OST to PDF format along with attachments. It easily converts OST to PDF format to extract Exchange OST emails to Adobe PDF format. It safely exports OST to PDF format to save OST emails as PDF file. It also offers to facilitates to choose the OST folder and perform the batch conversion of OST to PDF format at once in a single click. Moreover, the utility also ensures user that the email attributes, HTML formatting and data integrity of all OST files will remain same even after the conversion process. The tool is also capable to keep all the OST emails and other data items will remain saved in same folders even after the conversion process. It is the best suited solution for users to convert OST to PDF with entire data items. Users are also capable to test the utility by using the free trial version of the software.
Read More Info,Visit Here:- https://www.zooksoftware.com/ost-to-pdf/
To export all OST files and folders into PST Outlook, here is the best OST to PST Converter Tool available by GainTools. This Converter tool does not require the installation of Outlook to perform OST file conversion, before converting a file into another format a smart preview is shown to the user. A FREE DEMO pack is available, the entire user can make use of this pack for converting up to 10 emails from each folder into each format. This tool is very helpful and 100% safe and secure.