Nondrinkers do not appear to have a higher risk of esophageal cancer. Brooks and colleagues say health care providers should ask their patients about whether they experience redness after drinking alcohol. If so, this should be treated as a warning sign of heightened esophageal cancer risk, requiring screening.
These add-ons are equivalent to saving the file as a .dwg or .dxf file in the user interface. To save the files through the user interface, click Save As on the File menu. In the Save As dialog box, on the Save as type list, select AutoCAD Drawing (*.dwg) or AutoCAD Interchange (*.dxf).
AnyCAD Viewer. AnyCAD Viewer is a free CAD viewer software for your computer. With the help of this freeware you can easily view CAD files in various formats such as .iges, .3ds, .mdl, .obj, .md2, .stl, .dxf, .fbx, .step etc. You can tryout this freeware to open and view CAD files in multiple formats.