There are multiple third-party tools available on the internet, you just need to the right solution for convert OST to PST file. I will suggest the Mac OST to PST Converter software. This tool gives 100% accurate results. This tool easily recover damaged OST file without any loss of OST data. The free trial version which transfers the first 10 emails from OST file to PST file folder. It supporting MS Outlook all Version 2019, 2018, 2013, 2010, 2007, 2003 and Mac OS versions like 10.10, 10.11, 10.12, 10.13, 10.14.
You can use OST to PST Converter software is a reliable tool for moving OST files into Outlook PST file format that easily converts OST file to PST file. It helps to move OST data into many file formats like EML, EMLX, MSG, and MBOX file formats. This software supports all the latest versions of Windows such as Windows 10, 8, 7, XP, Vista, etc.
Use InQuit OST to PST Converter because there is no size limitation for converting data from Outlook OST file to PST file format. Various different types of formats can be supported by this tool such asPST, EML, EMLX, vCal, vCard, HTML, MBOX, MSG, etc. With the help of InQuit OST to PST Converter can easily convert your entire data such as email, notes, task, attachment, contact, draft, inbox, and calendar (To, Cc, From, Date, Time, Subject, Object, and Bcc) from Outlook OST file into Personal Storage File (PST) with full preview before the conversion. Try the free demo version of the convert 30 emails for free.