option to import wp users?

I would like to make one click demo data with my so that my client will get complete demo data like my site.

where I am creating theme with Ultimate Member plugin, so basically my theme like Member directory, so here I need to import dummy users along with my pages and posts. So is there an option to add dummy users data which already imported as demo-users.csv

so I need to use that csv into one click demo option, can any one guide me?