SysInfo NSF to PST Converter converts IBM/HCL Lotus Notes NSF files into Outlook PST files and other supported formats. It can also migrate NSF mailbox data to an Office 365 account. The software exports emails, contacts, calendars, and mailbox items while retaining email metadata, attachments, and the original folder hierarchy.

Load multiple NSF files in bulk without a stated file-size limitation. Preview mailbox folders and contents before conversion, then select the folders or data you want to export. Use date filters to select data by a chosen range, exclude folders, or skip previously migrated folders. The duplicate removal option identifies repeated emails using criteria such as To, From, Subject, and Body. You can also skip attachments during export.

Save NSF email data as PST, EML, or PDF. Export NSF contacts to VCF or MSG when saving data to EML or PDF. For PST output, use the split option to divide a large result into smaller PST files based on MB or GB. Options include HTML formatting, custom folder names, and naming patterns such as Subject and Date_Subject. Choose a destination for converted files.

The software supports IBM Notes 9.0 and Microsoft Outlook versions, including Office 365, 2019, 2016, 2013, 2010, 2007, 2003, 2002, 2000, 98, and 97. It is compatible with Windows 11, 10, 8.1, 8, 7, and Windows Server versions. IBM Lotus Notes or HCL Notes must be installed and configured to perform conversion. Microsoft Outlook installation is not mandatory for creating PST files.

Version v24.12 is 184 MB, released October 27, 2025. Editions include Home, Administrator, Technician, and Enterprise. Requirements include an Intel Core 2 Duo E4600 2.40 GHz processor, 8 GB RAM (16 GB recommended), and 512 GB disk space.

The demo version converts up to 50 items per folder. To get started, install and run the tool, select an NSF file, preview and choose folders, select an output format, configure available options, and start conversion. Preview selected data before you convert.