All editions of MS Outlook are supported by the SysInspire OST to PST converter software so you can easily import the OST files in Outlook 2016.
Also, after import of the files, you can split the pst file into smaller sizes for easy access.
If you want to know more, you can go for the trial version and explore all the features of the ost to pst converter yourself without any complications.
launch and open the SysInspire OST to PST Converter tool after successful download to start with the conversion process.
On the main screen click on 'Open OST File' if you remember the exact location of Outlook OST file
Then hit on the 'Find OST File' option and search the OST file
Later on, click on the file 'Convert' option
Instantly the software starts to import the entire OST file to PST in Outlook 2016 and displays a message after successful import of the file
You can get the OST file imported to PST in Outlook 2016 and earlier versions like 2013, 2007, 2003 and the latest 2019 version also by adopting the manual methods but they can be time-consuming and do not certify and approve of complete mailbox conversion. But, if you choose SysInspire OST to PST Converter is a risk-free and comprehensive tool that imports multiple or single OST files to Outlook PST format as per the condition.
More info:- https://www.sysinspire.com/ost-to-pst-converter/