Split Outlook PST If you have a lot of Outlook PST duplicate data and you want to divide it according to size, year, and folder, then you can use the BetaVare Split PST Tool. It splits Outlook PST files into wise sizes, years, and folders as per the user's given command. And it works on all Windows versions, such as 11, 10, 8.1, 8, Vista, and XP. and it also provides free trial versions. It supports all Microsoft Outlook versions, like 2021, 2019, 2016, 2013, 2010, 2007, 2003, and 2000. It also supports ANSI and Unicode PST files.