  We generalize the recently introduced Density-Matrix Renormalization Group
(DMRG-X) [Khemani et al, PRL 2016] algorithm to obtain Floquet eigenstates of
one-dimensional, periodically driven many-body localized systems. This
generalization is made possible by the fact that the time-evolution operator
for a period can be efficiently represented using a matrix-product operator. We
first benchmark the method by comparing to exact diagonalization for small
systems. We then obtain Floquet eigenstates for larger systems and show
unambiguously that the characteristic area-law scaling remains robust.
