NSF Viewer Free File Viewer Tool to read, open, and view Lotus Notes NSF Files. NSF file Opener has been added to the list of freeware categories. This NSF file opener can smoothly open Lotus Notes files and allow you to preview each Mailbox item (Inbox, Sent Items, Outbox, Draft,) Contacts, Calendar, Task, etc. This software is also useful even if one does not have Lotus Notes software. NSF File Viewer is one of the smartest methods to read your emails freely. Even if you are having large-sized NSF files and multiple files it always works smoothly. This freeware program is developed for both non-technical and technical users with the help of a simple User Interface. NSF File Viewer tool not only supports normal NSF files, but it also helps to view the contents from extremely corrupted Lotus Notes NSF file emails. Free NSF Opener is one of the highly advanced software as it not only helps you to view your mails and its related data but, also read Notes NSF files with email attachments with 100% data security. This NSF File Viewer is developed with some of the most excellent features, and one of them is its trivial scanning modes. The three scanning modes help you to scan data as per the need for the damaged file type. Users can choose the search option to find an NSF file from your local file or it can be also used to search a particular mail, task, contact, etc. from your NSF file. This NSF Reader can smoothly open your large size NSF file. By using this utility you can open, view, and load Lotus Notes NSF files up to 50 GB of all your emails. Freeware NSF Opener provides two versions one is the free version and another is an advanced version known as the Pro version. If the user wants to upgrade your free version to the Pro version, you can also convert your NSF files to PST format.