The present invention with each other to a method for converting the format for the data of another two-dimensional CAD system, and more particularly, to extract the information necessary to take advantage of to each other, exchange with each other the drawing data written in a two-dimensional CAD and compare different to a system and a method that through the correction operation for the part so that the figure data can be transmitted.; How to convert the file of the present invention for achieving the above object, first, a transmission system converting into a format suitable for internal data structures exchange, and second, to use the receiving system operates the exchange data to facilitate a form and processing step, and the third, the method comprising: encoding a suitable form of ASCII (ASCII) files to the exchange, and the fourth, further comprising utilizing a disk or magnetic tape or a network to transmit data toward the receiver from the sender side, the fifth received, extracted from the file medium, then characterized in that it comprises the step of translating the step of converting a format suitable for processing, the sixth, two steps to improve the quality of the converted information, such as the second step, the seventh, the receiving system's internal format.
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