Exporting ProStep EDMD Changes as IDZ Files To export ProStep EDMD changes as compressed .idz files: To display the CircuitWorks Options dialog box, do one of the following: From the CircuitWorks application, click the CircuitWorks application menu , and then click Options . From the SOLIDWORKS application, click Tools > CircuitWorks > CircuitWorks Options. In the CircuitWorks Options dialog box, click ProStep EDMD . For Default file format, select *.idz (compressed) and click OK. Parent topicProStep EDMD Files