A printer includes an input unit, a cell-size changing unit, a print data creating unit, and a printing unit. The input unit receives table data describing a table including a plurality of cells. Each of the plurality of cells has a size. The cell-size changing unit is configured to be capable of changing the size of a cell that is associated with a formula. The print data creating unit creates print data for printing a cell-size changed table that includes the size changed cell in a predetermined part of a recording sheet such that the formula fits entirely within the size changed cell, if the cell-size changing unit changes the size of the cell. The printing unit prints the cell-size changed table based on the print data in the predetermined part of the recording sheet.