For easily converting your OST file you can use the best third-party tool SoftMails OST to PST Converter software. It is a 100% secured tool. It is easy to use and you can easily set up this without any problem. It can easily run on various versions of Windows such as 2010, 2013, 2009,2016etc. In this tool, you can see the full live preview of the ost file during the conversion. It doesn't make any problems during the recovery or convert your OST file into different formats. it maintains all email’s original email property like to, bcc, cc, subject, time, date, from, or data and also maintain all other properties without any modifications in structure and formating.
Read More:- OST to PST converter software
Convert OST to PST Manually
Open Outlook and go to the File menu.
Select the Import/Export option.
Choose Export to a file.
Select Outlook Data File (.pst)
Choose whether to export a specific folder or the whole account.
Check the Include subfolders box.
Next, select a destination for the Export, and then click Finish.
Regards,
Willjoe