FILE CONVERSION METHOD AND APPARATUS FOR LSI DESIGN DATA

A file conversion method for LSI design data, which converts LSI design data files described by a first format into source data of a list type structure expressed by lists of cells and nodes, and stores the source data in a memory, and converts the source data of the list type structure stored in the memory into LSI design data files described by a second format. A file conversion apparatus for LSI design data is comprised of multiple input processing portions for changing plural LSI design data files whose description formats are different from each other into source data of a common list type structure expressed by lists of cells and nodes, respectively, and for storing the source data in a memory, multiple output processing portions for changing the source data of the list type structure stored in the memory into plural LSI design data files, a format designation portion for designating an input format and an output format, and an activating portion for activating one of the input processing portions and one of the output processing portions according to the input format and the output format which are designated with the format designation portions, respectively.