Use Zimbra to Exchange 2013 Converter software to migrate Zimbra to Exchange 2013 file format without any errors. This software contains free demo facility and preview facility for user's evaluation. Free demo migrates only first 20 items from Zimbra to Exchange 2013 and this tool is easily accessible without Zimbra installation in system. It provides safe and risk free conversion of files with options to choose destination path for resultant file of user.
For more: https://zimbra-converter.weebly.com/