I Need to convert Exchange EDB to PST file

OST file of one of the users has got corrupt, due to which he is not able to access his mails. He has asked me to provide him a solution to get access to his mailbox back. Being an Exchange Admin, I can convert the exchange EDB to PST, which the user can import into his Outlook to get the mails back. I have tried to export PST file from Exchange 2013 with powershell script but something went wrong and PST could not be exported. So, I am in a search of any alternate solution to Export Exchange EDB to PST.

Please help as I need to provide the used with PST file asap.