If you need to import a PST file into Outlook 2010, the eSoftTools Tool is the best option. A large PST file can be divided into several smaller files based on their size, and the split option is available for files ranging in size from 1 GB to 25 GB. The user interface of the software is straightforward and simple to use. Combining non-technical and technical skills is simple. The trial version of this software allows you to import PST files. In the trial version, you can convert up to 25 emails per folder.