I am getting extra character  when i run sql file

I have a .sql file to create a Postgres function:

CREATE FUNCTION id_generator°generateid() RETURNS SETOF integer AS$BODY$BEGIN    RETURN QUERY SELECT max(ua_id)                FROM user_attribute;        RETURN;END;$BODY$LANGUAGE plpgsql;

However when I run this function, I am getting an extra character 'Â'.

Any idea how to remove this?

When I try to run this function in Postgres, I see that extra character 'Â'