How to Split Heavy Outlook PST File with Full Accuracy?

Apr 10, 2025
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The safest and most accurate way to split a heavy Outlook PST file is by using the Advik PST Splitter Tool. This tool is designed to divide oversized, slow, or unmanageable PST files into smaller parts without losing a single email or attachment. To split your file, you just need to install the tool, add your large PST file, and choose a splitting option such as split by size, year, date range, or folder. After selecting the destination path, start the process and the software will create clean, error-free PST files with complete accuracy. It keeps your folder structure, metadata, and formatting exactly the same, ensuring that the new PST files are 100 percent safe and ready to use in Outlook. The tool works without Outlook installation and supports all PST types, making it a reliable choice for heavy PST files.