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Cigati OST Splitter Tool

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Cigati OST Splitter Tool is a powerful Windows utility designed to help Outlook users split large, oversized OST files into multiple, manageable PST files — without any data loss or alteration. Whether you're dealing with bloated mailboxes or performance issues caused by oversized offline storage files, this tool delivers a fast, reliable, and straightforward solution. Users can split OST files based on multiple parameters, including file size, date range, sender's email address, and folder, offering full flexibility in how data is divided. The software supports bulk splitting, enabling multiple OST files to be processed simultaneously to save time and effort. A built-in Ignore Duplicate Emails feature eliminates redundant messages during the splitting process, helping users reclaim storage and maintain a clean mailbox. Output PST files can be password-protected and encrypted, securing sensitive data from unauthorized access. The tool features an intuitive GUI requiring no technical expertise to operate. A free demo version is available, allowing users to split up to 50 emails and evaluate all features before purchase. Compatible with all major Windows versions, including Windows 11.

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