Search & Extract

Images

jpg jpeg 2000 gif png pdf wmf emf tiff eps pict bmp

Video

mov mpeg avi wmv

Sound

mp3 wav System 7 au aiff

Text

ascii rtf html

From:

avi cab cache chm dmg doc emlx exe ithmb m4p mht mp3 pdf pps ppt raw swf wps xls zip and other formats

SketchUp can import DXF and DWG files - with a free trial period
DraftSight lets you view and edit DWG files.
eDrawings Viewer from SolidWorks Can view DWG and DXF files
Microspot DWG Viewer can open DWG files.
QCad is a cross platform and also for macOS.