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How to split large Outlook PST files into smaller parts - Printable Version

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How to split large Outlook PST files into smaller parts - Anand-Kashyap - 02-25-2025

To split large Outlook PST files into smaller parts, follow these steps using the Regain PST Splitter Tool:

  1. Download and Install: Install the Regain Outlook PST file Splitter software on your system.
  2. Open the Tool: Launch Regain PST Splitter and select the large PST file you want to split.
  3. Choose a Splitting Option:
    • By Size: Split the PST file into smaller files based on a predefined size.
    • By Date: Split the file into different parts based on a specific date range.
    • By Email Sorting: Sort emails by sender, recipient, or subject to create separate PST files.
  4. Preserve Data Integrity: The tool ensures that all email details (attachments, timestamps, and headers) remain intact.
  5. Select Output Location: Choose where you want to save the split PST files for easy access and organization.
  6. Start the Process: Click “Split” and let the tool divide the PST file into smaller, more manageable parts.
With its simple interface, flexibility, and support for both UNICODE and ANSI files, Regain PST Splitter offers an efficient and secure way to manage large Outlook PST files.