public Io_line_rdr_fxt File_lines_(int count) {
for (int i = 0; i < count; i++) tmp.Add_int_fixed(i, 2).Add_byte_nl();
Io_mgr.I.SaveFilBry(rdr.Urls()[0], tmp.Xto_bry_and_clear());
return this;
}
public Io_line_rdr_fxt File_lines_(int fil_idx, int bgn, int end) {
for (int i = bgn; i < end; i++) tmp.Add_int_fixed(i, 2).Add_byte_nl();
Io_mgr.I.SaveFilBry(rdr.Urls()[fil_idx], tmp.Xto_bry_and_clear());
return this;
}