Trying to open a dump file on PostGreSql

I am trying to open a dump file into postgresql and While I used the restore option on PG Admin 4 when I checked the tables, there was absolutely nothing and I am getting this message.

pg_restore: [archiver] input file appears to be a text format dump. Please use psql.

Could someone please tell me how to move ahead so that I can get the tables into my database from the dump .

Thanks for looking