You are very wlecome if you want to use the NLFFF based on the MHD relaxation method or collaborate with me using the NLFFF. I can help you visualize the NLFFF in 3D space. Don't heasitate to contact me. Detailed infromation is here (Inoue et al. 2014a). From 2021, NLFF Database is available maintained by ISEE, Nagoya University.