Would you step out of the line? Could you step out the line? Please step out of the line, will you?
Would you mind stepping out of the line?
列から出てください 列 a line ~から出る step out of ~ 丁寧な言い方です。 Would you step out of the line? Could you step out the line? Please step out of the line, will you? Would you mind stepping out of the line?