There are certainly many charting modules available, including ones also implementing the Highcharts library. However as far as the maintainers*) are aware, this is the only one that also takes advantage of the special functionality of the HighchartTable jQuery library.
That makes this module unique for the following reasons:
You can insert a chart above any numeric HTML table on any page with a single click. Whether the table was embedded into normal content using a WYSIWYG editor (CKeditor perhaps), produced by a Views plugin, a Webform results summary, it doesn't matter.
This modules adds the ability to change default file field icons. You can use core icon packages (included in this module), or you can define a custom icon package.
Reference Table Formatter provides a field formatter to render a table of referenced entities' fields on the target entity of a variety of different reference field types.