I recommend that you use this BLR Outlook OST file converter software is the very advance tool to convert all of the outlook pst files data to new pst file this software can convert all outlook pst items including contacts, emails, items calendar items, emails items and many other items to the office 365 account . This software will work with all versions that support 32bit or 64bit PST files this program can capable of converting all outlook pst items without damaging original pst file.