NSF Opener - Version 3.5 NSF Opener tool smoothly deletes local security from Lotus NSF file so as to open lotus Notes NSF file. Securase software is the advance Lotus Notes security remover tool to open secure NSF files and erase local security from Lotus Notes database. Erase error such as “you are not authorized to access that database” or “you are not authorized to access that operation” errors with manageable Lotus Notes NSF security remover tool. You can download free trial version of Securase, demo version is can erase security from provided NSF files. Buy full version of SysTools Securase for opening unlimited secure NSF files. License version is available only at 49 USD (cost is applicable for only single user) and 99 USD for personal and business license respectively.