Split up large PST File - Version 4.1 Split up large PST file and save those file at your desired location. Split large PST file is most appropriate way to avoid corruption due to oversize in Outlook PST. To split large PST files Split PST software is well known used now days. The software is capable to split unlimited PST files. Split PST software provides you different options to split Outlook PST files.• Split PST BY Size• Split PST by Date• Split PST By Year• Split PST By folderGets free trial demo version of split PST software that shot out all query regarding how to split up large PST file. Demo version allows you to split first 50 emails from Outlook. If you choose “Split by Folder” options then you able to split 10 emails from each folder. For any further query contact our technical support team at any time 24X7 hours.