Stella the ost convertor software for 2003 can be the most effective software for converting all data from ost files to pst files. This program will assist users convert all mailbox items from ost into a pst file. This software converts all deleted items from ost mailbox information to a pst format. This software converts all versions 32bit as well as 64bit mailboxes into a pst file. Stella software to transforms all ost mail items into office 365 account.
For more details, click this link
Thanks for Your Solution.
I have tried EmailsGuru OST to PST Converter and it successfully works for me. It allows me convert my 22GB OST file to PST format without any additional efforts. Moreover, my colleagues are also using this tool for conversion of their OST files into PST format.
I have also checked out this list of 5 best OST to PST Converter tools which helps me to choose the best of my own knowledge.
Thanks a Lot for your wonderful suggestions.