Kernel for MBOX to PST converts the MBOX items to PST. These items include emails, attachments, contacts etc. The selection of MBOX files depends upon user. This choice is made narrower with application of advanced filter from which user can make selection of MBOX files on the basis of different criteria like To, From, Subject, Date, and Attachments. For Entourage to PST conversion you are suggested to download the trial version initially.