If you want to convert your OST data into PST format due to some reasons such as virus attack, abruptly shutdown PC, downtime of server and etc.
You may use any manual trick to easily convert it into pst format.
Manual trick can easily convert ost file into pst without any hassle But there are some limitation also which is that this method has very lengthy steps and take much time to process.
Only technical person can run this process because it required some technical skills.
So if your are not a technical person then i suggest you to use any third party software which is easily available on internet.
All the software can easily resolve your problem and effectively convert all OST data into PST format without any technical skill.If you want any recommendation then i would like to recommend you this OST to PST converter software which can effectively convert single or multiple ost files into PST format.