Weeom PST Splitter offers several advantages, which turn it into a mighty instrument in the organization of huge PST files. The utility does not restrict the user from dividing PST files into sizes that are easy to manage. It is feasible to divide even encrypted PST files, cutting them into numerous new files based on the sizes or date ranges defined by the user. It generates individual PST files for every date range or a single PST file for all. The user also has the option to save process information in HTML format and display PST file information for parallel splitting. This free trial version, which processes only the first 50 items per folder, is a trustworthy tool for Outlook users.
Blog: How to split PST Files
For a rapid and reliable tool to convert MBOX files to Outlook PST format, I would like to recommend a MBOX to PST Converter tool by Weeom. It is supported by conversion from more than 20 of the most popular MBOX email clients, including Apple Mail, Thunderbird, SeaMonkey, etc. Also, the batch procedure makes it possible to convert large-sixed MBOX files into smaller-sized PST files. It also provides detailed export options as migration to MSG, Office 365, Live Exchange Server with advanced features without requiring technical abilities. The tool will be user-friendly and will not require technical expertise, which makes it good for both less technical and tech-savvy users. Moreover, a demo version is available that allows you to test the software before even purchasing the full version.
Read more: MBOX Converter
Jamesjackson0847 
Jamesjackson0847