If you are looking for the best tool to open PST files, then you can try MacSonik PST Viewer Pro, which makes your task easy and fast without any data loss. This software provides multiple advanced feature like it ensures a safe conversion of PST files into numerous formats. For instance, you can convert PST files into PDF, MBOX, HTML, MSG, CSV, and many other file formats. Apart from this feature, it can convert PST files in email clients such as Thunderbird Mail. And it can convert your pst files with a selective date range.