Converting OST files manually is very complex and hard, and if you are from a non-technical background, you will not be able to convert OST to PST. Another thing is that converting OST files manually might increase the chance of data loss. To avoid all these things, we are going to suggest a professional method to convert OST to PST.
To convert OST to PST, you can use a professional tool like the OST to PST converter. This OST to PST Converter helps convert OST files into PST without losing data. This tool easily converts the OST file into a number of file formats, such as PST, PDF, DOC, DOCX, HTML, MHTML, etc. This OST to PST converter allows you to convert single and multiple OST files without any data file restrictions. It also helps you migrate the OST file to a number of email clients, such as Office 365, Thunderbird, Yahoo Mail, etc.