Breaking large-sized Outlook PST file into multiple PST files is too easy once you have GainTools Split PST Tool.
Get a step by step guide to easily divide large PST into smaller PST -
Initially, download and start the software on your Windows machine.

Split PST Software Interface
Use the Browse button and add PST file from the system to the software panel.

Browse PST Files
Preview of internal files of PST is displayed. You can check the files.

Preview & View PST Files
The tool offers 3 splitting options โ

Select Exporting Option
Click on the Browse button and mention an output directory to save the resultant PST files.

Select Exporting Option
Hit the Split Now button to start the splitting process.

Split Now
Your PST files have been successfully splitted & save at your desired format. You can now access your divided files from the specified location.