The term “NSF Tool” most commonly refers to an NSF File Viewer or Converter Tool, an IT utility used to open, view, and migrate Notes Storage Facility (.nsf) files. These files are the proprietary database format used by HCL Notes (formerly known as IBM Notes and Lotus Notes) to store emails, appointments, contacts, and design elements.
Because the term can mean a few different things depending on your industry (IT, public health, or research), the primary meanings are broken down below. 1. IT & Software: NSF File Viewer and Converter Tools
When companies migrate away from HCL/Lotus Notes to modern email ecosystems like Microsoft Outlook, Microsoft 365, or Google Workspace, administrators rely on an NSF Tool to extract and convert data. Core Capabilities Intro to NSF Tech Labs: Session I
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