Dataset for "Intertwined charge, spin, and orbital degrees of freedom under electronic correlations in the one-dimensional Fe3+ chalcogenide chain"

1. The construction for installing DMRG++ code (https://github.com/g1257/dmrgpp) is described in the SM file. 2. The example input file and instructions for the observables are also listed in the SM file. 3. Note that there is a negative sign for the tight-binding kinetic component of the three-orbital Hubbard model part in the DMRG++ code, while it is a positive sign for the kinetic Hamiltonian in the WANNIER90 package as used in this work. In this case, the example input file of the hopping matrix has a sign difference as written in the main tex.