| Write IDF files in
                  these units | The units used when writing IDF files: mm (millimeters), in/1000
                  (thousandths of an inch), or INCH
                  (inches). This setting does not affect the physical size of the output
                  board and components in the file, just the units used.   Although all systems that read IDF files should be able to read them in any
                    supported units, some systems have problems if they open IDF files expressed in
                    units other than the current units. To avoid problems, select the units to match
                    the system that will read the exported file. | 
            
              | To this number of
                  decimal places | The number of decimal places used for linear and angular values.
                  You might need to change this value to suit certain ECAD systems to control the
                  accuracy of the output. | 
            
              | Using this decimal
                  delimiter | The decimal-point character: ,
                    (Comma) or . (Period).  Different ECAD systems use different formats, as do systems
                  installed on some international versions of Windows. | 
            
              | Blank filename
                  characters | The method for handling strings containing spaces: Surround with double quotes or Replace with underscore. |