A list data management device comprising a histogram display control unit (11, 13, 15a, 15e-15g) (S5, SA, A1-A10, S6) which displays a histogram based on list data, an element color setting unit (11) (S7-S10) which designates a display element corresponding to a given class from the histogram displayed by the histogram display control unit and sets a display color of the display element, and a conditional format generating unit (11, 15d) (SB, B1-B3) which generates conditional format data based on the display element and the display color set by the element color setting unit, the conditional format data causing data of the list data, which corresponds to the class of the display element, to be displayed in a display mode using the display color.
