Transfer the OST file to Thunderbird, Outlook, Office 365, and Gmail. Use Data Recovery Freeware OST to PST converter. It helps to convert the OST file into PDF, MBOX, CSV, MSG, EML, EMLX, HTML, etc. It removes duplicate OST files. It maintains the folder hierarchy without damaging the folder data. Moreover, It has easy to use interface and anyone can use this tool.
If you require the excellent OST to MBOX Converter software that easily exports OST data in MBOX file without harming any saved files of OST, then using the most successful software that name is [b]Softaken OST Converter[/b] software, it can export single or multiple OST profiles in MBOX formats without any changes in its data (bcc, cc, from, date, and attachments). User can also try its free trial in which the user migrates the primary few items of OST to MBOX. Refer: - https://www.softakensoftware.com/ost-to-pst-converter.html