Open Lotus Notes NSF Files - Version 3.5 Solve problem for how to open Lotus Notes NSF files and how to read NSF database in most precise manner with Lotus Notes Opener tool. Using Securase software you can easily remove ‘you are not authorized to access that database' error from NSF files. As we know that Lotus Notes is very secure email client and it does not give any permission to open their database in the absence of Lotus Notes. To remove NSF error and to open NSF database you must buy a third party NSF eraser tool that helps you to erase local security from Lotus Notes database with ease. Download free trial version of NSF security remover tool for judging the software efficiency level. But trial version removes local security from provided NSF database. Purchase full version of Securase software for removing Local security from unlimited NSF database, license version of Open Lotus Notes NSF tool is available only at 49 USD (this price is available only for single user).