type         date         name
    ----    ---------------   ------------------------

    file    2023.09.12.1234   0.dcm
    file    2023.09.12.1234   1.dcm
    file    2023.09.12.1234   analyze.hdr
    file    2023.09.12.1234   example4d.nii.gz
    file    2023.09.12.1234   nifti1.hdr
    file    2023.09.12.1234   test.mgz
    file    2023.09.12.1234   tiny.mnc
    file    2023.09.12.1234   tinypet.v