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This free tool splits large Outlook PST data files into smaller ones. After new PSTs are created, source data files remain unchanged. Attach the resulting personal folders to the Outlook profile or save them on disk. Split PST using different criteria of your choice, retaining the original data and folder structure. - Split Outlook PST file into smaller parts according to a specified date, sender/recipient email address, subject, size, or folder. - Split all PST formats, modern Unicode and obsolete ANSI. - Keep original elements and folder hierarchy intact. - Attach or detach split data files to/from Outlook. - Skip Deleted Items if necessary. - Specify a period in the handled PST to split the file into multiple files. - Split many PSTs into different locations using the command line. - Organize PST data files directly from Outlook or use a standalone app without opening Outlook. The command line app in the Professional Edition of the utility allows splitting multiple PSTs from different locations. Create your batch scripts and PowerShell scenarios based on a size or a date. Command line enables splitting multiple .pst files into smaller ones in a single operation.