Opening an ECAD File from CircuitWorks You can open an ECAD file from CircuitWorks. You can also open an ECAD file from SOLIDWORKS. To open an ECAD file from CircuitWorks: Click Open (Quick Access toolbar) or File > Open. Quickly open a recently visited file by clicking under Recent documents in the File toolbar. From the Open ECAD File dialog box, select the ECAD file. Use Files of type to display only files of specific ECAD file formats, such as IDF 4 File (*.idf) for IDF 4.0 files. Click Open. CircuitWorks analyzes the file. If there are no issues, CircuitWorks opens the file and updates the tree view and preview image. If there are warnings or errors, CircuitWorks displays a dialog box. Click OK to ignore the warnings. Parent topicBasic Operations Starting CircuitWorks CircuitWorks Setup Wizard Using CircuitWorks from SOLIDWORKS Comparing ECAD Files Saving an ECAD File Printing the Preview Image Exiting CircuitWorks Opening an ECAD File from SOLIDWORKS PADS ASCII