Paste or type atoms and Cartesian coordinates (case-insensitive), one atom per line, e.g. C 0. 0. 0. or h,0,0.757,0.586. Rendering updates as you type. Drag & drop a .xyz/.txt file, too.
Accepted delimiters: spaces, commas, or tabs. Comments and blank lines are ignored. Numbers like 0. are OK.