: The tool maintains the original folder hierarchy (Inbox, Sent, Drafts, etc.) so your data remains organized after conversion. How to Use the Converter
Unlike many converters that only work on 32-bit Outlook, version 2.1.0.63 is fully compatible with both 32-bit (x86) and 64-bit (x64) versions of Windows and Outlook. This ensures seamless operation on modern hardware.
In this article, we will explore every feature, technical specification, installation process, and performance benchmark of Coolutils OST to PST Converter 2.1.0.63.
Once completed, open Outlook, navigate to File > Open & Export > Open Outlook Data File , and select your newly created PST file to view your recovered mailbox items.
Unlike some converters that require a working Outlook installation and profile, Coolutils works independently. This is crucial when converting OST files from a failed system.
| Free method (Outlook export) | Coolutils converter | |------------------------------|----------------------| | Requires working Exchange profile | Works with orphaned OST | | Cannot open corrupted OST | Can recover partial data | | Slow for large files | Optimized for large OST |
It converts calendars, contact lists, journal entries, notes, and tasks alongside standard email folders. 4. Folder Hierarchy Preservation
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In Microsoft Outlook, an OST file is a local, synchronized copy of your mailbox from an Exchange Server or Microsoft 365 account. Its purpose is to allow you to access and manage your emails, calendar, and contacts without an active internet connection; any offline changes will sync automatically once a connection is restored.
When an Exchange account is deactivated, or when an Outlook profile crashes, the local OST file becomes orphaned and inaccessible. This is where specialized data recovery tools become necessary. Among the various solutions available in the data migration market, stands out as a reliable, lightweight utility tailored for both 32-bit (-x86) and 64-bit (-x64) Windows architectures. Understanding the Need: OST vs. PST Files