Stable and free CAD for OS X 10.11, El Capitan? Are there any stable and free CAD programs for OS X 10.11, El Capitan?

I just need to review one CAD file. I find many CAD programs for OS X 10.10, Yosemite, but not for El Capitan.
If you only need to review a file, try using a free demonstration of:


AutoCAD
MacDraft
Vectorworks
SketchUp


For more CAD applications on the Mac, see Pure Mac's CAD section and AppleCAD's extensive list. Most will work with OS X 10.11.