ATS OST to PST converter software is another effective solution which helps to convert your OST files to PST format without losing and tampering any content. The software is capable to convert unlimited mailboxes from OST to Outlook PST, EML, EMLX, vCard, MBOX,MSG, Office 365, Live Exchange server, MBOX and etc. You can recover and convert the OST files with the password and you can also recover the OST files that are strongly encrypted. With the help of this tool you can see the preview of the OST files conversion. You can very easily split the large PST files in small bits also.