The present invention relates to a system for modifying a table comprising generating means for generating a table, wherein the table contains one or more columns and one or more lines containing data, wherein the columns and the lines are related to one or more first categories, respectively, and wherein at least one of said first categories is divided into one or more sub-categories, wherein the system further comprises changing means for changing the distance between data related to two neighboring first categories and / or for changing the distance between data related to two neighboring sub-categories and / or for changing the line height and / or the column width, wherein the changing means are adapted to increase and / or decrease said distance and / or line height and / or the column width in order to increase legibility of the table.