[phenixbb] symmetry file for Phenix merging statistics

Hi Phenixbb members, I am trying to use "phenix merging statistics" tool, and I have an unmerged sca file from HKL2000, because the unmerged HKL2000 output does not have unit cell information, so I also need to input a symmetry file, how can I find the symmetry file? Is there a way to generate a symmetry file? Thanks ahead. Xiao