Posted by dxli on Jun 12, 2015; 2:12pm
URL: https://forum.librecad.org/Opening-saved-dxf-file-on-OS-X-tp5710913p5711637.html

To open dxf files from osx finder:

Please try the latest nightly build. It's supported opening files by "drag&drop".

so:

0, install the latest LibreCAD nightly build;
1, launch LibreCAD;
2, launch finder;
3, drag your dxf file(s) from the finder window to the LibreCAD window.