You can convert to a table() object and writetable() with WriteVariableNames set to false.
Or you can do it "manually", by using fopen(), fprintf(), fclose()
Or you can
char(results(:,1) + ',' + results(:,2))
and dlmwrite() that to a .csv file, making sure you use 'delimiter', '' (that is the empty character vector)
If you were using R2019a or later (and thank you for filling in your release!), then you could use writematrix()