If you want to split the PST files without corrupting them, you can try the Shoviv PST splitter tool to split them without messing with them. Using this tool, users split Outlook PST files by year, date, folder, or size. This utility presents you with an easy-to-use user interface that helps newbies to do the task easily. The tool can handle both ANSI and Unicode types of PST. If you have trust issues with the tool, you can check it by using the free trial.
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