Multiple users search for a fast way to Convert MBOX to PST files, are you the same person then I suggest you eSoftTools MBOX Converter Software. This software can convert any size of the file in a single mouse click. This software comes with an email filtering Option where you can convert only those files that you want. You just only apply the filter by name and date. Here a free demo version is available. Download the software now and take the benefits of its features. 

Read more - Convert MBOX to PST file