AutoCAD, DXF and DWG Viewer for Google Drive. It is a tool that allows you to view CAD files (DXF, DWG...) in your browser.
Free Software Extensions
https://documentviewer.herokuapp.com/
Free Apps
https://bhikadia.com
https://speedtesting.herokuapp.com/officeviewer/
https://www.alexandernorup.com/
http://kmlviewer.nsspot.net/
http://stlviewer.kwebpia.net/
BrowserNative