Check step by step procedure to split large size PST file.
Step 1: Download, install, and launch Outlook PST Splitter.

Step 2: Click on "Open" button to browse PST file.

Step 3: You can check the folder structure in the left panel.

Step 4: Now select the desired loaction to save the split PST file.

Step 5: There is an option to split PST file by size and you can also customized it.

Step 6: To split data between specific date range select Message Split option.

Step 7: You can also select the Message Filter Option to select a certion option.

Step 8: Now click on the Start Split button to begin the process
