Open a "strange" nsf database

Dears,

i have a database nsf named attach2011.nsf, it’s size is around 2GB, i know for sure it contain images and tif coded in blob.

When i try to open it with lotus notes, the fallowing message apper : "IBM Lotus Symphony does not support this file format ".

what’s the problem? what should i to do for opening it?

thk!!!

Subject: Please send us nsf file

Hi,
Is it possible to attach or send that file (to anand_deshpande@in.ibm.com) so that we can analyze it further.
Thanks,
Anand